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Difference between revisions of "Chickens"

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This article provides summarized information about farmed chickens in the context of animal rights, including injustices and suffering, humane labels and certifications, chicken sentience and cognition, the environmental consequences of farming chickens, the health risks of chicken meat and eggs, and impacts to workers.  
  
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This article provides information about chickens that should prove useful to those advocating for animal rights, as well as to those exploring the rationale for veganism. 
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== General Information ==
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It covers various aspects of farmed chickens in the context of animal rights, including injustices and suffering, humane labels and certifications, chicken sentience and cognition, the environmental consequences of farming chickens, the health risks of chicken meat and eggs, and impacts to workers and neighborhoods. 
 
  
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Read it through or use the table of contents to go directly to your section of interest.  
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=== Lineage ===
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It's commonly thought that the domesticated chickens used for meat and eggs are primarily descended from the red jungle fowl of Southeast Asia. More recent research paints a more complex picture—birds from India, Cambodia, Ceylon, and other areas may also be involved in the lineage.<ref>Smith, Page, and Charles Daniel. The Chicken Book. Athens: University of Georgia Press, 2000, 11-13.</ref>
  
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== General Information  ==
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Chickens were used widely in Southeast Asia, India, and Tibet and were a common fixture in ancient Greece. Their exploitation in the West spread from Greece to Rome and then on to Europe and the Americas.<ref name="smithbook">ibid.,16-30.</ref>
  
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It's commonly thought that the domesticated chickens used for meat and eggs are primarily descended from the Red Jungle Fowl of Southeast Asia. More recent research paints a more complex picture—birds from India, Cambodia, Ceylon, and other areas may also be involved in the lineage.<ref>Smith, Page, and Charles Daniel. The Chicken Book. Athens: University of Georgia Press, 2000, 11-13.</ref>
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=== Numbers ===
  
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Chickens were used widely in Southeast Asia, India, Tibet<ref name="smithbook">ibid.,16-30.</ref>,and were a common fixture in ancient Greece. Their exploitation in the West spread from Greece to Rome and then on to Europe. <ref name="smithbook" />
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Globally, over 76 billion chickens are slaughtered annually for meat, and another 11 billion laying hens are slaughtered when their female reproductive systems are used up and they are no longer profitable.<ref name=":0">Derived from United Nations FAO statistics for 2017: “FAOSTAT.” Accessed June 10, 2019. http://www.fao.org/faostat/en/#data/QL</ref> In the United States alone, the figures are 9 billion and 375 million.<ref name=":0" /> Far more chickens are slaughtered than any other farmed animal.<ref name=":0" />
  
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Globally, over 76 billion chickens are slaughtered annually for meat and another 11 billion laying hens are slaughtered when their female reproductive systems are used up and they are no longer profitable.<ref name=":0">Derived from United Nations FAO statistics for 2017: “FAOSTAT.” Accessed June 10, 2019. <nowiki>http://www.fao.org/faostat/en/#data/QL</nowiki>.</ref> In the United States, the figures are 9 billion and 375 million<ref name=":0" />. Far more chickens are slaughtered than any other farmed animal.<ref name=":0" />
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A PEW report points out that "in just over 50 years, the number of chickens produced annually in the United States has increased by more than 1,400% while the number of farms producing those birds has dropped by 98%."<ref>“Big Chicken: Pollution and Industrial Poultry Production in America.” Accessed July 6, 2019. <nowiki>http://pew.org/2yIxE4p</nowiki>.</ref><!-- I couldn't find this quote in the linked report. -->  
  
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Using USDA and FDA data, it is estimated that 98% of chickens in the United States are raised in factory farming conditions. <ref name=":4">Institute, Sentience. “US Factory Farming Estimates.” Sentience Institute, April 11, 2019. <nowiki>http://www.sentienceinstitute.org/us-factory-farming-estimates</nowiki>.</ref> It seems tenable that the number is similar in other industrialized nations.
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The Sentience Institute used USDA and FDA data to estimate that 98 percent of chickens in the United States are raised in factory farming conditions.<ref name=":4">Institute, Sentience. “US Factory Farming Estimates.” Sentience Institute, April 11, 2019. <nowiki>http://www.sentienceinstitute.org/us-factory-farming-estimates</nowiki>.</ref> It seems tenable that the percentage is similar in other industrialized nations.
  
 
== Injustices and Suffering ==
 
== Injustices and Suffering ==
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The injustices and abuses to chickens discussed below are either standard procedure or not unusual—even those chickens and chicken products with a humane label or certification, as discussed in the next section. The pressures of production require animals to be mistreated in order to be profitable. To omit a significant number of these injustices would render the products unaffordable by all but the most affluent.
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{{Embed:Injustices because commodities | chickens}}
  
 
=== Loss of Life ===
 
=== Loss of Life ===
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As shown in the section on sentience and cognition, chickens not only have a will to live and value their lives just as humans do, but also have desires, preferences, emotions, families, social communities, natural behaviors, and sense of themselves and a sense of the future.
 
  
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As Tom Regans puts it, chickens and the other animals we use "have a life of their own that is of importance to them, apart from their utility to us. They are not only in the world, they are aware of it and also of what happens to them. And what happens to them matters to them. Each has a life that fares experientially better or worse for the one whose life it is."<ref>[[Archive:Tom Regan Speech at the Royal Institute of Great Britain in 1989]]</ref>
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We have no nutritional need for chicken meat or eggs, so denying chickens their lives is unnecessary, as are the other forms of suffering enumerated here.<ref>[[In reply to: We need animal products to be healthy]]</ref>
  
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We have no nutritional need for chicken meat or eggs, so denying them their lives is unnecessary, as is the other forms of suffering enumerated here.<ref>[[In reply to: We need animal products to be healthy]]</ref>
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Not only are we taking their lives—we are doing so after allowing them to live only a small fraction of their natural eight-year life span. Chickens used for meat are slaughtered at six weeks, which is about one percent of their life span. Chickens used for eggs are slaughtered when their female reproductive systems are used up and they are no longer profitable—at 18 months, which is 20 percent of their natural life span.<ref>“Overview - Facts - Aussie Abattoirs | Slaughterhouses, Killing Animals for Human Consumption.” Accessed June 12, 2019. <nowiki>https://www.aussieabattoirs.com/facts</nowiki>.</ref>
  
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Not only are we taking their lives, we are doing so after allowing them to live only a small fraction of their natural roughly eight year lifespan. Chickens used for meat are slaughtered at 6 weeks, which is about one percent of their lifespan. Chickens used for eggs are slaughtered when their female reproductive systems are used up and they are no longer profitable—at 18 months which is 20% of their natural lifespan.<ref>“Overview - Facts - Aussie Abattoirs | Slaughterhouses, Killing Animals for Human Consumption.” Accessed June 12, 2019. <nowiki>https://www.aussieabattoirs.com/facts</nowiki>.</ref>
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To take the life of any sentient being is to harm that being by depriving them of opportunities for fulfillment, even if it is done suddenly and painlessly (which it is not, as explained below).
  
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To take the life of any sentient being is to harm that being, even if it is done suddenly and painlessly (which it is not, as shown below).
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=== Slaughter ===
  
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=== Slaughter ===
 
 
Several methods of killing chickens are used, including manual throat slitting, neck breaking, decapitation, and gassing, all of which are painful.
 
Several methods of killing chickens are used, including manual throat slitting, neck breaking, decapitation, and gassing, all of which are painful.
  
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In the United States, where there are no federal regulations for chicken welfare, the industry claims that 99 percent of the birds are "totally unconscious" after an electrical stun, which is administered in some facilities just prior to slaughter.<ref>“National Chicken Council Brief on Stunning of Chickens.” The National Chicken Council (blog), February 8, 2013. https://www.nationalchickencouncil.org/national-chicken-council-brief-on-stunning-of-chickens/.</ref>
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In the United States, where there are no federal regulations for chicken welfare, the industry claims that 99 percent of the birds are "totally unconscious" after an electrical stun, which is administered in some facilities just prior to slaughter.<ref>“National Chicken Council Brief on Stunning of Chickens.” The National Chicken Council (blog), February 8, 2013. https://www.nationalchickencouncil.org/national-chicken-council-brief-on-stunning-of-chickens/.</ref> However, research shows that the industry uses low-voltage stuns in order to avoid damage that might render the carcass unsellable. The low voltage stuns are not effective, which results in many (if not most) chickens being alive and fully conscious when their throat is slit, and many remain alive as they enter the scalding tank.<ref>Shields, Sara J., and A. B. M. Raj. “A Critical Review of Electrical Water-Bath Stun Systems for Poultry Slaughter and Recent Developments in Alternative Technologies.” ''Journal of Applied Animal Welfare Science''13, no. 4 (September 17, 2010): 281–99. <nowiki>https://doi.org/10.1080/10888705.2010.507119</nowiki>.</ref><ref>Pitney, Nico. “Scientists Believe The Chickens We Eat Are Being Slaughtered While Conscious.” HuffPost, 24:58 400AD. <nowiki>https://www.huffpost.com/entry/chickens-slaughtered-conscious_n_580e3d35e4b000d0b157bf98</nowiki>.</ref><ref name=":1">“Welfare at Slaughter of Broiler Chickens: A Review.” Accessed June 12, 2019. <nowiki>https://doi.org/10.3923/ijps.2008.1.5</nowiki>.</ref>
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But research shows that the industry uses low voltage stuns in order to avoid damage that might render the carcass unsellable. The low voltage stuns are not effective, resulting in many, if not most chickens being alive and fully conscious when their throats are slit and may remain alive they enter the scalding tank.<ref>Shields, Sara J., and A. B. M. Raj. “A Critical Review of Electrical Water-Bath Stun Systems for Poultry Slaughter and Recent Developments in Alternative Technologies.” ''Journal of Applied Animal Welfare Science''13, no. 4 (September 17, 2010): 281–99. <nowiki>https://doi.org/10.1080/10888705.2010.507119</nowiki>.</ref><ref>Pitney, Nico. “Scientists Believe The Chickens We Eat Are Being Slaughtered While Conscious.” HuffPost, 24:58 400AD. <nowiki>https://www.huffpost.com/entry/chickens-slaughtered-conscious_n_580e3d35e4b000d0b157bf98</nowiki>.</ref><ref name=":1">“Welfare at Slaughter of Broiler Chickens: A Review.” Accessed June 12, 2019. <nowiki>https://doi.org/10.3923/ijps.2008.1.5</nowiki>.</ref>
 
  
 
=== Mass Extermination of Male Hatchlings (Culling) ===
 
=== Mass Extermination of Male Hatchlings (Culling) ===
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Because laying hens are bred specifically to lay eggs, males hatched from the laying hen variety of chicken are not profitable—they don't yield sufficient meat and they can't lay eggs. And because they are not profitable, the males are ground alive in a macerator, gassed, or suffocated, shortly after they are hatched. This industry refers to this practice as ''chick culling.'' (Weak and struggling females are also discarded in this manner.<ref>“What Happens with Male Chicks in the Egg Industry? – RSPCA Knowledgebase.” Accessed June 10, 2019. https://kb.rspca.org.au/knowledge-base/what-happens-with-male-chicks-in-the-egg-industry/</ref>)
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Because laying hens are bred specifically to lay eggs, males hatched from laying hens are not profitable—they don't yield sufficient meat, and they can't lay eggs. And because they are not profitable, the males are ground alive in a macerator, gassed, or suffocated—all shortly after they hatch.<ref>Aerts, S., and J. De Tavernier. “11. Killing Animals as a Matter of Collateral Damage.” In The End of Animal Life: A Start for Ethical Debate, 167–86. Wageningen Academic Publishers, 2015. https://doi.org/10.3920/978-90-8686-808-7_11.
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</ref> This industry refers to this practice as ''chick culling.'' (Weak and struggling females are also discarded in this manner.)<ref>“What Happens with Male Chicks in the Egg Industry? – RSPCA Knowledgebase.” Accessed June 10, 2019. https://kb.rspca.org.au/knowledge-base/what-happens-with-male-chicks-in-the-egg-industry/</ref>
  
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Hatchlings are about 50% male and 50% female. So statistically speaking, every laying hen has a brother who has been violently slaughtered. This is true even for backyard chickens, as the female hatchlings are sold not only to commercial producers but individuals keeping backyard chickens.
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Hatchlings are about 50 percent male and 50 percent female. So statistically speaking, every laying hen has a brother who has been violently slaughtered. This is true even for backyard chickens, as the female hatchlings are sold not only to commercial producers but also to individuals keeping backyard chickens.
  
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In the United States, over 375 million male chicks are slaughtered via culling. Worldwide, it's in the billions.<ref>Estimated from 2017 data: “FAOSTAT.” Accessed June 10, 2019. http://www.fao.org/faostat/en/#data/QL.</ref>
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In the United States, over 375 million male chicks are slaughtered annually via culling. Worldwide, it's in the billions.<ref>Estimated from 2017 data: “FAOSTAT.” Accessed June 10, 2019. http://www.fao.org/faostat/en/#data/QL.</ref>
  
 
{{jfa-expand | Extra: Lack of progress on the elimination of culling}}
 
{{jfa-expand | Extra: Lack of progress on the elimination of culling}}
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In June 2016, United Egg Producers (UEP), who claims to be responsible for 95% of egg production in the United States, issued a vague statement about supporting research to end this practice.<ref>“United Egg Producers Statement on Eliminating Male Chick Culling.” UEP Certified (blog), June 10, 2016. https://uepcertified.com/united-egg-producers-statement-eliminating-male-chick-culling/.
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In June 2016, United Egg Producers (UEP), who claim to be responsible for 95 percent of egg production in the United States, issued a vague statement about supporting research to end this practice.<ref>“United Egg Producers Statement on Eliminating Male Chick Culling.” UEP Certified (blog), June 10, 2016. https://uepcertified.com/united-egg-producers-statement-eliminating-male-chick-culling/.
 
</ref>
 
</ref>
  
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Following negotiations with the Humane League in 2016, Humane League executive director David Coman-Hidy stated that the UEP commitment "will virtually eliminate this practice in the American egg industry. … It is clear that chick culling will soon be a thing of the past in the United States".<ref>https://www.huffpost.com/entry/egg-producers-killing-male-chicks-stop_n_575b0adde4b00f97fba8406f</ref>
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Following negotiations with the Humane League in 2016, Humane League executive director David Coman-Hidy stated that the UEP commitment "will virtually eliminate this practice in the American egg industry. … It is clear that chick culling will soon be a thing of the past in the United States."<ref>https://www.huffpost.com/entry/egg-producers-killing-male-chicks-stop_n_575b0adde4b00f97fba8406f</ref>
 
   
 
   
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This was reported by the Human League and in the press as if it were sure thing and an absolute commitment, but the UEP statement referenced above only says that "we encourage the development of an alternative with the goal of eliminating the culling of day-old male chicks by 2020 or as soon as it is commercially available and economically feasible."
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This was reported by the Human League and in the press as if it were a sure thing and an absolute commitment, but the UEP statement referenced above only says that "we encourage the development of an alternative with the goal of eliminating the culling of day-old male chicks by 2020 or as soon as it is commercially available and economically feasible."
  
 
As of December 2018, only one grocery store chain in Germany is selling eggs from hatcheries where males have not been slaughtered.<ref>Daley, Jason. “A German Grocery Chain Is Selling First-Of-Its-Kind ‘No-Kill’ Eggs.” Smithsonian. Accessed June 10, 2019. https://www.smithsonianmag.com/smart-news/what-no-kill-eggs-are-now-available-berlin-supermarkets-180971117/</ref> At the time this was written, we found no reports on the elimination of culling elsewhere, including the United States.
 
As of December 2018, only one grocery store chain in Germany is selling eggs from hatcheries where males have not been slaughtered.<ref>Daley, Jason. “A German Grocery Chain Is Selling First-Of-Its-Kind ‘No-Kill’ Eggs.” Smithsonian. Accessed June 10, 2019. https://www.smithsonianmag.com/smart-news/what-no-kill-eggs-are-now-available-berlin-supermarkets-180971117/</ref> At the time this was written, we found no reports on the elimination of culling elsewhere, including the United States.
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=== Overcrowding and Confinement ===
 
=== Overcrowding and Confinement ===
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Extreme crowding is the reality for the 98% of chickens living in factory farming conditions, whether or not they are in battery cages.<ref name=":4" />
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Extreme crowding is the reality for the 98 percent of chickens living in factory farming conditions, regardless of whether they are in battery cages.<ref name=":4" />
  
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While hens in battery cages spend their lives confined to a space less than the size of a standard sheet of paper,<ref>Friedrich, Bruce, ContributorExecutive Director, and The Good Food Institute. “The Cruelest of All Factory Farm Products: Eggs From Caged Hens.” HuffPost, 13:29 500. <nowiki>https://www.huffpost.com/entry/eggs-from-caged-hens_b_2458525</nowiki>.</ref> chickens in in commercial chicken houses don't fare much better. While they may not be confined to a cage, they are still entrapped by the mass of other chickens surrounding them.  
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While hens in battery cages spend their lives confined to a space smaller than the size of a standard sheet of paper,<ref>Friedrich, Bruce, ContributorExecutive Director, and The Good Food Institute. “The Cruelest of All Factory Farm Products: Eggs From Caged Hens.” HuffPost, 13:29 500. <nowiki>https://www.huffpost.com/entry/eggs-from-caged-hens_b_2458525</nowiki>.</ref> chickens in commercial chicken houses don't fare much better. While they may not be confined to a cage, they are still entrapped by the mass of other chickens surrounding them.  
  
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{{Jfa-expand | Extra: Battery Cage Legislation}}
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{{Jfa-expand | Extra: Battery cage legislation}}
  
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Despite failed and weak legislation at the federal and state levels<ref>“A Decade Later, Another ‘Cage-Free’ Measure Is on the California Ballot.” Civil Eats, October 25, 2018. https://civileats.com/2018/10/25/a-decade-later-another-cage-free-measure-is-on-the-california-ballot/.
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Despite failed and weak legislation at the federal and state levels,<ref>“A Decade Later, Another ‘Cage-Free’ Measure Is on the California Ballot.” Civil Eats, October 25, 2018. https://civileats.com/2018/10/25/a-decade-later-another-cage-free-measure-is-on-the-california-ballot/.
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</ref>, and despite the trend for producers and grocers to promise to go cage-free<ref>“Cage-Free Commitments.” Accessed June 10, 2019. https://welfarecommitments.com/cage-free/.
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</ref> and despite the trend for producers and grocers to promise to go cage-free,<ref>“Cage-Free Commitments.” Accessed June 10, 2019. https://welfarecommitments.com/cage-free/.
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</ref>, as of 2014 over 95% of eggs involved battery cages<ref name=":2" />. There is little evidence that the situation has materially improved since.  
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</ref> as of 2014 over 95 percent of eggs involved battery cages.<ref>“United Egg Producers Statement on Eliminating Male Chick Culling.” UEP Certified (blog), June 10, 2016. https://uepcertified.com/united-egg-producers-statement-eliminating-male-chick-culling/.
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</ref> There is little evidence that the situation has materially improved since.  
  
 
{{Jfa-expand-end}}  
 
{{Jfa-expand-end}}  
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==== Denial of Natural Behaviors ====
 
==== Denial of Natural Behaviors ====
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Crowding prevents or hinders Chickens' ability to engage in their natural behaviors of preening, roosting, perching, spreading their wings, establishing a social order, pecking and scratching for food, and teaching their young to peck and scratch for food.<ref>Prescott, N.B. and Wathes, C.M., (2002). Preference and motivation of laying hens to eat under different illuminances and the effect of illuminance on eating behavior.  ''British Poultry Science'', '''43''': 190-195</ref> The denial of these behaviors from living in such close quarters results not only in discomfort, but the constant psychological stress of fear and anxiety.<ref>Eugen, Kaya von, Rebecca E. Nordquist, Elly Zeinstra, and Franz Josef van der Staay. “Stocking Density Affects Stress and Anxious Behavior in the Laying Hen Chick During Rearing.” ''Animals : An Open Access Journal from MDPI''9, no. 2 (February 10, 2019). <nowiki>https://doi.org/10.3390/ani9020053</nowiki>.</ref><ref>Appleby, M.C. “What Causes Crowding? Effects of Space, Facilities and Group Size on Behavior, with Particular Reference to Furnished Cages for Hens.” ''Animal Welfare''13 (August 1, 2004): 313–20.</ref><ref>Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” ''Animal Cognition''20, no. 2 (2017): 127–47. <nowiki>https://doi.org/10.1007/s10071-016-1064-4</nowiki>.</ref>
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Crowding prevents or hinders chickens' ability to engage in their natural behaviors of preening, roosting, perching, spreading their wings, establishing a social order, pecking and scratching for food, and teaching their young to peck and scratch for food.<ref>Prescott, N.B. and Wathes, C.M., (2002). Preference and motivation of laying hens to eat under different illuminances and the effect of illuminance on eating behavior.  ''British Poultry Science'', '''43''': 190-195</ref> The denial of these behaviors due to living in such close quarters results not only in discomfort but also the constant psychological stress of fear and anxiety.<ref>Eugen, Kaya von, Rebecca E. Nordquist, Elly Zeinstra, and Franz Josef van der Staay. “Stocking Density Affects Stress and Anxious Behavior in the Laying Hen Chick During Rearing.” ''Animals : An Open Access Journal from MDPI''9, no. 2 (February 10, 2019). <nowiki>https://doi.org/10.3390/ani9020053</nowiki>.</ref><ref>Appleby, M.C. “What Causes Crowding? Effects of Space, Facilities and Group Size on Behavior, with Particular Reference to Furnished Cages for Hens.” ''Animal Welfare''13 (August 1, 2004): 313–20.</ref><ref>Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” ''Animal Cognition''20, no. 2 (2017): 127–47. <nowiki>https://doi.org/10.1007/s10071-016-1064-4</nowiki>.</ref>
  
 
====Filth and Stench ====
 
====Filth and Stench ====
 
The ammonia-laden air in the chicken houses is so noxious that the birds commonly suffer respiratory disorders, severe flesh and eye burns, and even blindness.<ref>“Ammonia Toxicity in Chickens.” PoultryDVM. Accessed October 25, 2018. http://www.poultrydvm.com/condition/ammonia-burn </ref>
 
The ammonia-laden air in the chicken houses is so noxious that the birds commonly suffer respiratory disorders, severe flesh and eye burns, and even blindness.<ref>“Ammonia Toxicity in Chickens.” PoultryDVM. Accessed October 25, 2018. http://www.poultrydvm.com/condition/ammonia-burn </ref>
  
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Numerous videos and investigations document the filth and stench of urine, feces, feathers, and dander in chicken facilities. They show birds covered in feces and so weak that they could not clean themselves. Some were stuck in manure so deep it could be described as a manure pit.<ref name=":3">Direct Action Everywhere. Truth Matters: DxE Investigators Expose “Humane” Fraud at Whole Foods. Accessed April 2, 2018. https://www.youtube.com/watch?v=yU4PJCuslD0 </ref>
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Numerous videos and investigations document the filth and stench of urine, feces, feathers, and dander in chicken facilities. They show birds covered in feces and so weak that they cannot clean themselves. Some are stuck in manure so deep it could be described as a manure pit.<ref name=":3">Direct Action Everywhere. Truth Matters: DxE Investigators Expose “Humane” Fraud at Whole Foods. Accessed April 2, 2018. https://www.youtube.com/watch?v=yU4PJCuslD0 </ref><ref name=":2">“Chicken Videos Living Condiitons - Google Search. https://www.google.com/search?q=chicken+videos+living+condiitons</ref>
  
 
==== Sickness and Disease ====
 
==== Sickness and Disease ====
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Sickness and disease were common. Some were so sick you could hear them struggling to breathe. Some hens didn't have the strength to stand on their own two legs. Some barely able to move or respond to anything around them. Birds were found dead and dying. Chickens that had lost half their body weight.<ref name=":3" />
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Numerous undercover videos show that sickness and disease are common. Some chickens are so sick you can hear them struggling to breathe. Some hens don't have the strength to stand on their own two legs. Some are barely able to move or respond to anything around them. Birds are found dead, dying, and emaciated.<ref name=":3" /><ref name=":2" /> Research and reports bear this out.<ref>Adams, A. W., and J. V. Craig. “Effect of Crowding and Cage Shape on Productivity and Profitability of Caged Layers: A Survey.” Poultry Science 64, no. 2 (February 1, 1985): 238–42. https://doi.org/10.3382/ps.0640238.</ref><ref>Lawrence, Felicity. “If Consumers Knew How Farmed Chickens Were Raised, They Might Never Eat Their Meat Again.” The Observer, April 24, 2016, sec. Environment. https://www.theguardian.com/environment/2016/apr/24/real-cost-of-roast-chicken-animal-welfare-farms.
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</ref><ref>“Diseases of Poultry | Mississippi State University Extension Service.” Accessed June 18, 2019. http://extension.msstate.edu/agriculture/livestock/poultry/diseases-poultry.</ref>
  
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=== Dibilitating Selective Breeding ===
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=== Debilitating Selective Breeding ===
  
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A laying hen produces more than 300 eggs a year, but the jungle fowl from which they are bred lay less than 10 eggs in a year. This causes both physical and physiological stress.<ref>Cheng, H.-W. “Breeding of Tomorrow’s Chickens to Improve Well-Being.” Poultry Science 89, no. 4 (April 1, 2010): 805–13. https://doi.org/10.3382/ps.2009-00361 </ref> The large increase in the number of eggs laid is from a combination of selective breeding as well as the tendency of the hen to lay more when eggs are removed in order to follow her instinct to form a proper brood.<ref>Rutherford-Fortunati, Rutherford-Fortunati on. “Do Chickens Mourn the Loss of Their Eggs?,” June 29, 2012. http://gentleworld.org/a-chickens-relationship-with-her-eggs/ </ref>
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A laying hen produces more than 300 eggs a year, but the jungle fowl from which they are bred lay fewer than 10 eggs in a year. This causes both physical and physiological stress.<ref>Cheng, H.-W. “Breeding of Tomorrow’s Chickens to Improve Well-Being.” Poultry Science 89, no. 4 (April 1, 2010): 805–13. https://doi.org/10.3382/ps.2009-00361 </ref> The large increase in the number of eggs laid is from a combination of selective breeding and hens' tendency to lay more eggs when eggs are removed so they can follow their instinct to form a proper brood.<ref>Rutherford-Fortunati, Rutherford-Fortunati on. “Do Chickens Mourn the Loss of Their Eggs?,” June 29, 2012. http://gentleworld.org/a-chickens-relationship-with-her-eggs/ </ref>
  
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Laying hens are also bred to lay large eggs for which they have not evolved, stressing their reproductive system, and causing such problems as osteoporosis, bone breakage, and uterus prolapse.<ref>Jamieson, Alastair. “Large Eggs Cause Pain and Stress to Hens, Shoppers Are Told,” March 11, 2009, sec. Finance. https://www.telegraph.co.uk/finance/newsbysector/retailandconsumer/4971966/Large-eggs-cause-pain-and-stress-to-hens-shoppers-are-told.html </ref>
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Laying hens are also bred to lay large eggs for which they have not evolved, which stresses their reproductive system and causes such problems as osteoporosis, bone breakage, and uterus prolapse.<ref>Jamieson, Alastair. “Large Eggs Cause Pain and Stress to Hens, Shoppers Are Told,” March 11, 2009, sec. Finance. https://www.telegraph.co.uk/finance/newsbysector/retailandconsumer/4971966/Large-eggs-cause-pain-and-stress-to-hens-shoppers-are-told.html </ref>
  
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The modern broiler chicken is unnaturally large and has been bred to grow at an unnaturally fast rate and have large-sized breasts. This selective breeding comes with serious welfare consequences, including leg disorders, skeletal, developmental and degenerative diseases, heart and lung problems, breathing difficulty, and premature death.<ref>Stevenson, Peter. “Leg and Heart Problems in Broiler Chickens.” Compassion in World Farming, January 2003. https://www.ciwf.org.uk/media/3818898/leg-and-heart-problems-in-broilers-for-judicial-review.pdf </ref>
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The modern broiler chicken is unnaturally large and has been bred to grow at an unnaturally fast rate and have large breasts. This selective breeding comes with serious welfare consequences, including leg disorders, skeletal, developmental and degenerative diseases, heart and lung problems, breathing difficulty, and premature death.<ref>Stevenson, Peter. “Leg and Heart Problems in Broiler Chickens.” Compassion in World Farming, January 2003. https://www.ciwf.org.uk/media/3818898/leg-and-heart-problems-in-broilers-for-judicial-review.pdf </ref>
  
 
=== Debeaking ===
 
=== Debeaking ===
Line 97: Line 96:
 
Debeaking is painful, causes lasting suffering, impairs feeding, eliminates exploratory pecking, and contributes to lice from impaired preening.<ref>“Welfare Implications of Beak Trimming.” American Veterinary Medical Association, February 7, 2010. https://www.avma.org/KB/Resources/LiteratureReviews/Pages/beak-trimming-bgnd.aspx </ref>
 
Debeaking is painful, causes lasting suffering, impairs feeding, eliminates exploratory pecking, and contributes to lice from impaired preening.<ref>“Welfare Implications of Beak Trimming.” American Veterinary Medical Association, February 7, 2010. https://www.avma.org/KB/Resources/LiteratureReviews/Pages/beak-trimming-bgnd.aspx </ref>
  
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=== Rough Handling ===
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=== Rough Handling and Transport ===
  
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When chickens raised for meat reach their desired slaughter weight, they are caught, created, transported, unloaded, and placed in holding pens until slaughter.
+
When chickens raised for meat reach their desired slaughter weight, they are caught, crated, transported, unloaded, and placed in holding pens until slaughter.
  
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A review of videos of these activities shows squawking birds bring grabbed 4 at a time by their feet being roughly thrown or shoved into crowded crates, birds suffering dislocations and broken bones, wings and heads crushed in crates, feed withdrawal, birds dying from suffocation, heat and cold, and birds unable to stand from exhaustion. <ref>“Chicken Loading and Transportation - Google Search.” Accessed June 12, 2019. <nowiki>https://www.google.com/search?q=chicken+loading+and+transportation</nowiki></ref><ref>“Chickens Suffer during Catching, Loading, and Transport.” Accessed June 12, 2019. <nowiki>https://www.helpthechickens.ca/transport.php</nowiki>.</ref>
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A review of videos of these activities shows squawking birds being grabbed four at a time by their feet and roughly thrown or shoved into crowded crates, birds suffering dislocations and broken bones, wings and heads crushed in crates, birds dying from suffocation, hot and cold conditions, and birds unable to stand from exhaustion.<ref>“Chicken Loading and Transportation - Google Search.” Accessed June 12, 2019. <nowiki>https://www.google.com/search?q=chicken+loading+and+transportation</nowiki></ref><ref>“Chickens Suffer during Catching, Loading, and Transport.” Accessed June 12, 2019. <nowiki>https://www.helpthechickens.ca/transport.php</nowiki>.</ref>
  
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Research bears this out—a 2016 study in Poultry Science revealed that in addition to the physiological stress these procedures inflict, it is not unusual for a bird to experience dehydration, disease, injury, and pain, and even death. The injuries include wing and leg fractures, lesions, bleeding, bruising. <ref>Jacobs, Leonie, Evelyne Delezie, Luc Duchateau, Klara Goethals, and Frank A. M. Tuyttens. “Impact of the Separate Pre-Slaughter Stages on Broiler Chicken Welfare.” ''Poultry Science''96, no. 2 (February 1, 2017): 266–73. <nowiki>https://doi.org/10.3382/ps/pew361</nowiki>.</ref>
+
Research bears this out—a 2016 study in Poultry Science reveals that in addition to the physiological stress these procedures inflict, it is not unusual for a bird to experience dehydration, disease, injury, pain, and even death. The injuries include wing and leg fractures, lesions, bleeding, bruising.<ref>Jacobs, Leonie, Evelyne Delezie, Luc Duchateau, Klara Goethals, and Frank A. M. Tuyttens. “Impact of the Separate Pre-Slaughter Stages on Broiler Chicken Welfare.” ''Poultry Science''96, no. 2 (February 1, 2017): 266–73. <nowiki>https://doi.org/10.3382/ps/pew361</nowiki>.</ref>
  
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=== Light Manipulation ===
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== Humane Labels and Certifications ==
  
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=== Osteoporosis ===
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{{Embed:Humane labels and certifications meaningless}}
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{{Embed:Collapse extra - suggested script for discussing humane labels and certifications}}
  
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=== Forced Molting ===
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=== Pasture Raised ===
  
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=== Mental Illness ===
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{{Embed:Humane label pasture raised}}
  
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== Humane Labels and Certifications ==
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=== Cage-Free ===
  
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Investigations by Consumer Reports, The Open Philanthropy Project, and numerous others reveal that these certifications and labels are largely meaningless, as shown below.
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{{Embed:Humane label cage free}}
  
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These investigations show that the standards are weak and unenforced, audits and inspections are rarely done, and if they are done and violations are found, which is infrequent, no one gets fined.
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=== Free Range ===
  
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{{jfa-expand | Extra: Suggested script for discussing humane labels and certifications}}
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{{Embed:Humane label free range}}
  
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When discussing humane labels and certifications, in addition to providing some of the details presented in this section, conveying the ideas presented in the following script might be useful:
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=== Whole Foods Market (GAP) ===
  
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Many believe that we are not harming animals when we use them for food as long as we treat them well while they are living. The justification given for this view is that animals don't have a sense of the future, and thus don’t have an interest in continuing to live. However, current research in cognitive ethology and neurobiology, as shown above, says otherwise.
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Whole Foods Market spearheaded the development of the Global Animal Partnership (GAP) certification program and sells various products, including eggs and chicken meat, with GAP labels.
  
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But if one holds this belief in spite of the science, and wants to live by their own values, they might, with good intentions, decide to buy only animal products that have some sort of humane label or certification. However, investigations by Consumer Research, The Open Philanthropy Project, and numerous others reveal that these certifications and labels are largely meaningless.
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{{Embed:Humane label GAP}}
  
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These investigations show that the standards are weak and unenforced, audits and inspections are rarely done, and if they are done and violations are found, which is infrequent, no one gets fined.
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===Organic ===
  
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So even if you buy into the idea that it’s OK to eat animal products as long as the animals are treated well, there is virtually no chance that the animals have, in fact, been treated well, regardless of what label is on the package. While certain labels may represent less suffering for some of the abuses, other abuses remain. The mitigation of some of the cruelties does not justify the remaining ones.
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{{Embed:Humane label organic}}
  
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Humane labels and certifications are, for the most part, marketing ploys. They are designed to assuage our guilt, and they can engender higher profits because the industry knows that concerned, kindhearted consumers are willing to pay more for products they perceive to be humanely produced.
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===United Egg Producers Certified===
  
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The life of any farmed animal can only be described as one of commodified, abusive servitude ending in brutal slaughter. When viewed objectively, free from the fog of our cultural norms, their treatment and slaughter, by any standard of fairness and justice—cannot be considered humane.
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{{Embed:Humane label United Egg Producers Certified}}
  
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{{jfa-expand-end}}
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===American Humane Certified ===
  
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=== Cage-Free ===
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{{Embed:Humane label American Humane Certified}}
  
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Consumer Reports advises you to “ignore cage-free claims” for chickens.<ref>“A ‘Cage-Free’ Claim: Does It Add Value?” Greener Choices |Consumer Reports, March 5, 2018 http://greenerchoices.org/2018/03/05/cage-free-add-value/ </ref> "'Cage-free' does not mean the chickens had access to the outdoors." It only means the chickens were not confined to a cage.<ref name="cage-free">What Does ‘Cage Free’ Mean?” Greener Choices | Consumer Reports, February 6, 2017. http://greenerchoices.org/2017/02/06/cage-free-mean/ </ref>
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===Animal Welfare Approved ===
  
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''Cage-free'' chickens, like ''free-range'' chickens, may be confined not by a cage but by crowding so extreme that turning around and engaging in the natural behaviors of preening, nesting, foraging, dust bathing, and perching is difficult or impossible. Such extreme crowding in large metal warehouses is the norm.<ref>Ibid.</ref><ref>Dan Flynn, “Cage-Free Hens Don’t Improve Egg Food Safety, Nutrition Levels,” Food Safety News, March 1, 2017, http://www.foodsafetynews.com/2017/03/cage-free-hens-dont-improve-egg-food-safety-nutrition-levels/ </ref>
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{{Embed:Humane label Animal Welfare Approved}}
  
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=== Free Range ===
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===Certified Humane Raised and Handled===
  
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The USDA standard for ''free-range'' requires only that chickens are given some access to the outdoors. There are no stipulations for the size or quality of the outdoor space, and there is no requirement that the chickens actually spend time outdoors.<ref>“FSIS.” Food Safety Inspection Service, USDA, http://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/food-labeling/meat-and-poultry-labeling-terms</ref> Also, the claim does not have to be verified through inspections.<ref name="free-range">“What Does ‘Free Range’ Mean?” Greener Choices | Consumer Reports, April 25, 2017. http://greenerchoices.org/2017/04/25/free-range/ </ref>
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{{Embed:Humane label certified humane}}
  
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So it's not surprising that investigations by Consumer Reports (and others) reveal that most chickens labeled ''free-range'' spend their lives confined inside a crowded chicken house. The free-range space itself may be nothing more than an enclosed concrete slab that the chickens never use. These individuals lack the room even to turn around, much less engage in their natural behaviors of preening, nesting, foraging, dust bathing, and perching.<ref name="free-range" />
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===Backyard Chickens ===
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This has led Consumer Reports to say that ''free range'' is one of the most potentially misleading labels because of the discrepancy between what it implies and what is required to make the claim."<ref name="free-range" />
 
  
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Only one percent of eggs are from free-range hens that have the option to go outdoors, but like the other 99 percent, even those hens have likely never actually been outdoors.<ref>“A Hen’s Space to Roost.” New York Times, August 15, 2010. http://graphics8.nytimes.com/packages/pdf/weekinreview/20100815-chicken-cages.pdf</ref>
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Although backyard chickens are not associated with a certification or label like the others that we are covering here, they deserve a closer look. A considerable number of people regard the practice of keeping chickens in the backyard for food as innocuous.
  
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Jonathan Foer, in his well-researched and fact-checked book<ref>Yonan, Joe. “Book Review: Eating Animals by Jonathan Safran Foer,” November 22, 2009. http://www.washingtonpost.com/wp-dyn/content/article/2009/11/20/AR2009112001684.html</ref> Eating Animals, sums it up well in saying that "the free-range label is bullshit" and "should provide no more peace of mind than 'all-natural,' 'fresh,' or 'magical.'"<ref>Foer, Jonathan Safran. Eating Animals. Little, Brown, 2009, 102 “A ‘Cage-Free’ Claim: Does It Add Value?” Greener Choices |Consumer Reports, March 5, 2018</ref>
+
Baby chicks often die in transport. A quick search will find numerous reports of chicks being shipped alive to backyard hobbyists and dying in transport—and reports of those that make it being greatly stressed.
  
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=== Whole Foods Market (GAP) ===
+
Backyard chickens are the same or similar varieties as commercial chickens and are subject to all of the abuses that result from culling and selective breeding, as discussed above.
 +
 
 +
Backyard hens are likely to be slaughtered when egg production wanes, preventing them from living out their natural lives. As one hobbyist euphemistically put it, "when the expenses outweigh the value, then changes have to be made."<ref>“At What Age Do You Kill a Laying Hen?” BackYard Chickens. Accessed November 2, 2018. https://www.backyardchickens.com/threads/at-what-age-do-you-kill-a-laying-hen.837302/</ref>
  
−
Whole Foods Market spearheaded the development of the Global Animal Partnership (GAP) certification program and sells various products, including eggs and chicken meat, with GAP labels.
+
The slaughter of backyard chickens, whether laying hens or broiler chickens, is usually done by slitting the throat and waiting for the convulsing chicken to die its slow death. The slaughter is violent, cruel, and painful, just as with commercial operations.
  
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The Open Philanthropy Project criticized GAP for having weak enforcement and for providing only slight improvements over standard factory farming conditions.<ref>“Global Animal Partnership.” Open Philanthropy Project, March 26, 2016.  href="https://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support">https://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support </ref> For example, according to Consumer Reports, "standards for slaughter do not exist at any level for chickens and there is no limit on their rate of growth."<ref>“Global Animal Partnership Step 5+.” Greener Choices | Consumer Reports, May 23, 2017. http://greenerchoices.org/2017/05/23/global-animal-partnership-step-5/</ref>
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== Sentience and Cognition ==
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===Organic ===
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While we are not suggesting that the degree of moral consideration given to an animal be based on their cognitive capacity, it seems that most people are unaware of the rich cognitive, emotional, and psychological lives that chickens experience, including their ability to experience happiness, boredom, and frustration.<ref>Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” ''Animal Cognition''20, no. 2 (2017): 127–47. https://doi.org/10.1007/s10071-016-1064-4</ref>
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Some have the perception that chickens with the ''organic'' label means they are humanely raised, but that is not the case. Organic farmers are free to treat their animals no better than non-organic farmers. This is because the USDA, which controls the ''organic'' label in the United States, ruled that the label does not allow "broadly prescriptive, stand-alone animal welfare regulations."<ref>Whoriskey, Peter. “Should ‘USDA Organic’ Animals Be Treated More Humanely? The Trump Administration Just Said No.” Washington Post, December 15, 2017. https://www.washingtonpost.com/news/wonk/wp/2017/12/15/should-usda-organic-animals-be-treated-more-humanely-the-trump-administration-just-said-no/</ref>
 
  
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Consumer Reports informs us that while there are organic standards relating to animals, they lack clarity and precision, letting producers with poor standards sell poultry and eggs.<ref>“Do You Care about Animal Welfare on Organic Farms?” Greener Choices | Consumer Reports, February 6, 2018. http://greenerchoices.org/2018/02/06/care-animal-welfare-organic-farms/</ref>
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In her book on chicken behavior and intelligence, prominent animal neurobiologist Leslie J. Rogers says that "the cognitive abilities of some avian species may actually rival those of primates," and that "recent findings challenge assumptions that have been made about brain size and the superiority of the mammalian line of evolution."<ref>Rogers, Lesley J. ''The Development of Brain and Behaviour in the Chicken''. CAB International, 1995. 214.</ref> This is not as far-fetched as it might seem—the chicken's forebrain is similar to the forebrain of mammals.<ref>Jarvis, Erich D., Onur Güntürkün, Laura Bruce, András Csillag, Harvey Karten, Wayne Kuenzel, Loreta Medina, et al. “Avian Brains and a New Understanding of Vertebrate Brain Evolution.” Nature Reviews Neuroscience 6, no. 2 (February 2005): 151. https://doi.org/10.1038/nrn1606.</ref>  
−
===United Egg Producers Certified===
 
−
Consumer Reports says that while the label is verified, "it is not meaningful as an animal welfare label because certain basic conditions, such as the freedom to move, are not required."<ref>“United Egg Producers Certified.” Greener Choices | Consumer Reports, March 23, 2017. http://greenerchoices.org/2017/03/23/united-egg-producers-certified/</ref>{{jfa-expand | Details: Freedom to Move }}
 
  
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According to Consumer Reports, "the UEP Certified guidelines allow continuous confinement in crowded cages in dimly lit buildings without natural light and fresh air. Hens only have to be given enough space to stand upright, with a minimum space requirement of 8 by 8 inches for white laying hens kept in a cage. Producers keeping their hens in cages do not have to allow the hens to move freely, perch, dust bathe, or forage, and nest boxes are not required. While the label is verified, it is not meaningful as an animal welfare label because certain basic conditions, such as the freedom to move, are not required."<ref>“United Egg Producers Certified.” Greener Choices | Consumer Reports, March 23, 2017. http://greenerchoices.org/2017/03/23/united-egg-producers-certified/ </ref>
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Experiments show that chickens have a sense of the future and thus have an interest in continuing to live.<ref>Friday, 15 July 2005 Jennifer ViegasDiscovery News. “Chickens Worry about the Future.” Item, July 15, 2005. https://www.abc.net.au/science/articles/2005/07/15/1415178.htm.
 +
</ref><ref>Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” Animal Cognition 20, no. 2 (2017): 127–47. https://doi.org/10.1007/s10071-016-1064-4.
 +
</ref> It is clear they can anticipate future events, exhibit self-control, and delay gratification.<ref>Abeyesinghe, S. M., C. J. Nicol, S. J. Hartnell, and C. M. Wathes. “Can Domestic Fowl, Gallus Gallus Domesticus, Show Self-Control?” Animal Behaviour 70, no. 1 (July 1, 2005): 1–11. https://doi.org/10.1016/j.anbehav.2004.10.011.
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</ref>
  
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{{jfa-expand-end}}
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In the paper "Thinking chickens: a review of cognition, emotion, and behavior in the domestic chicken," Lori Marino examined 266 research articles in 16 peer-reviewed journals and found that chickens, among other capabilities…<ref>Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” ''Animal Cognition''20, no. 2 (2017): 127–47. <nowiki>https://doi.org/10.1007/s10071-016-1064-4</nowiki>.</ref>
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===American Humane Certified ===
 
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According to Consumer Reports, "the requirements fall short in meeting consumer expectations for a 'humane' label in many ways."<ref>“American Humane Certified.” Consumer Reports—Greener Choices | Consumer Reports, January 11, 2017. http://greenerchoices.org/2017/01/11/american-humane-certified/</ref>
 
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===Animal Welfare Approved ===
 
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This is the only certification that Consumer Reports says has strong standards, yet the standards still allow for mutilations<ref>“Animal Welfare Approved.” Greener Choices |Consumer Reports, November 16, 2016. http://greenerchoices.org/2016/11/16/awa-label-review/</ref>and other injustices. Also, products with this label are challenging to find. A search using their own product finder reveals that it's unlikely you will find any products with this label at a grocery store near you.<ref>“Find Products.” A Greener World. Accessed October 4, 2018. https://agreenerworld.org/shop-agw/product-search/</ref>
 
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===Certified humane raised and handled===
 
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Consumer Reports says that "we do not rate Certified Humane as a highly meaningful label for animal welfare, because the standards do not have certain requirements that a majority of consumers expect from a 'humanely raised' label, such as access to the outdoors."<ref>“Certified Humane Raised and Handled.” Consumer Reports—Greener Choices | Consumer Reports, January 30, 2017. http://greenerchoices.org/2017/01/30/certified-humane/</ref>
 
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===Backyard chickens ===
 
−
Although backyard chickens are not associated with a certification or label like the others that we are covering here, they deserve a closer look. A considerable number of people regard the practice of keeping chickens in the backyard for food as innocuous.
 
  
−
Baby chicks often die in transport. A quick search will find numerous reports of chicks being shipped alive to backyard hobbyists and dying in transport—and reports of those that make it being greatly stressed.
+
* possess the capacity for episodic memory, which provides "evidence for an autobiographical sense of self in the past, present, and future"
  
−
Backyard chickens are the same varieties or similar varies as commercial chickens, and are subject to all of the abuses that result from culling and selective breeding, as discussed below.
+
* exhibit self-control, a capacity not found in humans until age four and is associated with self-awareness and autonomy—the ability to think about and choose future outcomes
  
−
Backyard hens are likely to be slaughtered when egg production wanes, preventing them from living out their natural lives. As one hobbyist euphemistically put it, "when the expenses outweigh the value, then changes have to be made."<ref>“At What Age Do You Kill a Laying Hen?” BackYard Chickens. Accessed November 2, 2018. https://www.backyardchickens.com/threads/at-what-age-do-you-kill-a-laying-hen.837302/</ref>
+
* are capable of reasoning and logical inference
  
−
The slaughter of backyard chickens whether laying hens or broiler chickens, is usually done by slitting the throat and waiting for the convulsing chicken die its slow death. The slaughter is violent, cruel, and painful, just as with commercial operations.
+
* are as "emotionally and socially complex as most other birds and mammals in many areas"
  
−
== Sentience and Cognition ==
+
* can perform simple math and understand the ordinality of numbers
  
−
== Environmental Consequences ==
+
* have self-awareness—"a subjective awareness of one’s identity, one’s body, and one’s thoughts through time, distinguished from others"
  
−
== Human Health and Nutrition ==
+
* are capable of a wide range of emotions, including happiness, fear, anxiety, boredom, and frustration
  
−
=== Eggs ===
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* "are behaviorally sophisticated, discriminating among individuals, exhibiting Machiavellian-like social interactions, and learning socially in complex ways that are similar to humans."
  
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=== Chicken Meat ===
+
* "have distinct personalities, just like all animals who are cognitively, emotionally, and behaviorally complex individuals"
  
−
== Social Consequences of Chicken Production ==
+
== Environmental Consequences ==
  
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=== Worker Injuries ===
+
Chicken production, like other areas of animal agriculture, has a profoundly negative impact on the environment.  
−
Poultry workers suffer serious injuries at twice the rate of other industries, and are more than six times as likely to have sickness related to work, according to The Occupational Safety and Health Administration (OSHA).<ref>“OSHA Poultry Slaughtering and Poultry Processing | Occupational Safety and Health Administration.” Accessed June 12, 2019. <nowiki>https://www.osha.gov/dep/enforcement/poultry_processing_10282015.html</nowiki>.</ref>
 
  
−
OSHA data from 2013 revealed poultry worker suffered carpal tunnel syndrome seven times more than average and workers were 4.5 times more likely to identify repetitive motion for serious injury.<ref>Cartwright, Michael S., Francis O. Walker, Jill N. Blocker, Mark R. Schulz, Thomas A. Arcury, Joseph G. Grzywacz, Dana Mora, Haiying Chen, Antonio J. Marín, and Sara A. Quandt. “The Prevalence of Carpal Tunnel Syndrome in Latino Poultry-Processing Workers and Other Latino Manual Workers.” ''Journal of Occupational and Environmental Medicine''54, no. 2 (February 2012): 198–201. <nowiki>https://doi.org/10.1097/JOM.0b013e31823fdf53</nowiki>.</ref><ref>Cartwright, Michael S., Francis O. Walker, Jill C. Newman, Mark R. Schulz, Thomas A. Arcury, Joseph G. Grzywacz, Dana C. Mora, Haiying Chen, Bethany Eaton, and Sara A. Quandt. “One-Year Incidence of Carpal Tunnel Syndrome in Latino Poultry Processing Workers and Other Latino Manual Workers.” ''American Journal of Industrial Medicine''57, no. 3 (March 2014): 362–69. <nowiki>https://doi.org/10.1002/ajim.22250</nowiki>.</ref><ref>Musolin, Kristin, Jessica G. Ramsey, James T. Wassell, and David L. Hard. “Prevalence of Carpal Tunnel Syndrome among Employees at a Poultry Processing Plant.” ''Applied Ergonomics''45, no. 6 (November 2014): 1377–83. <nowiki>https://doi.org/10.1016/j.apergo.2014.03.005</nowiki>.</ref>
+
A 2008 report from the United Nations concludes that "the environmental impacts of the [poultry production] sector are substantial. Poultry production is associated with a variety of pollutants, including oxygen-demanding substances, ammonia, solids, nutrients (specifically nitrogen and phosphorus), pathogens, trace elements, antibiotics, pesticides, hormones, and odor and other airborne emissions." This substantial impact is on surface water, groundwater, air, and soil.<ref>Gerber, Paul R., Carolyn Opio, and Henning Steinfeld. “Poultry Production and the Environment – a Review.” Animal Production and Health Division, Food and Agriculture Organization of the United Nations, 2008.</ref>
  
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The GAO found that workers were hesitant to speak up about the injuries for fear of retaliation, suggesting the problems may be underreported.<ref>Office, U. S. Government Accountability. “Workplace Safety and Health: Better Outreach, Collaboration, and Information Needed to Help Protect Workers at Meat and Poultry Plants,” no. GAO-18-12 (December 7, 2017). https://www.gao.gov/products/GAO-18-12.</ref>
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The impact of chicken production on global greenhouse gas emissions is not as great as for cows, but at eight percent of the total for animal agriculture, it is still substantial.<ref>“FAO - News Article: Key Facts and Findings.” FAO News—GHG Emissions by Livestock. Accessed July 3, 2019. http://www.fao.org/news/story/en/item/197623/icode/ </ref>
  
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The Union of Concerned Scientists concludes that with the increase in chicken processing line speeds allowed by the USDA in late 2018, the situation will only get worse.<ref>“USDA Increases Line Speeds Endangering Poultry Processing Plant Workers.” Union of Concerned Scientists. Accessed June 12, 2019. <nowiki>https://www.ucsusa.org/center-science-and-democracy/attacks-on-science/usda-increases-line-speeds-endangering-poultry</nowiki>.</ref>
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The poultry industry points to chicken production being less environmentally damaging than other species of farmed animal production because "chickens are the most efficient converters of feed into meat of all land-based livestock species."<ref>Kite, Vivien. “How Sustainable Is Chicken Farming?” ACMF (blog), June 2, 2014. https://www.chicken.org.au/how-sustainable-is-chicken-farming/</ref> But their calculations ignore the total impact on the environment that accrues because far more chickens are produced than any other animal.<ref name=":0" />  
  
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=== Worker Mental Health ===
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It's ironic that chickens that actually are free-range to some extent (which are a small minority of the birds labeled free-range, as discussed above) place a greater environmental burden in the areas of energy use, land use, and the potential for global warming, eutrophication, and acidification.<ref>Rodic, Vesna, Lidija Peric, Mirjana Đukić Stojčić, and Natasa Vukelić. “The Environmental Impact of Poultry Production.” Biotechnology in Animal Husbandry 27 (January 1, 2011): 1673–79. https://doi.org/10.2298/BAH1104673R.
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</ref>
  
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=== Neighborhood Crime ===
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== Human Health, Nutrition ==
  
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== Concluding Remarks ==
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=== Eggs ===
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To those who have fully absorbed the undeniable scope and breadth of the suffering propagated by chicken production and consumption to both chickens and humans, the word juggling and mental gymnastics made in attempts to maintain the mental fog of denial seems incredible and is regrettable. Truth and logic are on the side of justice for chickens and for all exploited animals.
 
  
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== Footnotes ==
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Eggs contain no nutrients that cannot be easily obtained from plant-based sources. About 70 percent of egg calories are from fat (much of which is saturated), and eggs are loaded with cholesterol.<ref>“Egg Nutrition Facts Labels | Large Egg Calories and Protein.” Egg Nutrition Center (blog). Accessed July 6, 2019. https://www.eggnutritioncenter.org/egg-nutrition-facts-panels/.
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<references />
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</ref> Also, eggs have zero fiber. So it would be disingenuous to say that eggs are healthy because they contain other nutrients when these other nutrients can easily be found in other foods.
  
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== Meta ==
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It's telling that even the USDA, arguably the best friend animal agriculture could ask for, has told the egg industry that it is not allowed to say eggs are healthy or nutritious.<ref>Transcript tab: "Flashback Friday: Who Says Eggs Aren’t Healthy or Safe? | NutritionFacts.Org.” Accessed July 5, 2019. https://nutritionfacts.org/video/flashback-friday-who-says-eggs-arent-healthy-or-safe/.</ref>
  
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This page was originally authored by Greg Fuller. The contents may have been edited since that time by others.
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The links between eggs and heart disease, cancer, and diabetes have been known for years.<ref>“What’s Wrong with Eggs?” Forks Over Knives, September 3, 2013. https://www.forksoverknives.com/whats-wrong-with-eggs/ </ref> But this has become controversial because most of the more recent egg studies have been funded by the egg industry,<ref>“Egg Industry Continues to Influence Dietary Guidelines, FOIA Document Reveals.” Physicians Committee for Responsible Medicine. Accessed July 6, 2019. https://www.pcrm.org/news/news-releases/egg-industry-continues-influence-dietary-guidelines-foia-document-reveals.
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</ref> resulting in misleading conclusions and sowing confusion about the topic.<ref>Nestle, Marion. “Food Industry Funding of Nutrition Research: The Relevance of History for Current Debates.” JAMA Internal Medicine 176, no. 11 (November 1, 2016): 1685–86. https://doi.org/10.1001/jamainternmed.2016.5400.</ref><ref>“Egg Industry Funded Studies - Google Search.” Google Search. Accessed July 5, 2019. https://www.google.com/search?q=egg+industry+funded+studies.</ref> If you are interested in exactly how the egg industry has rigged the results, see [https://nutritionfacts.org/video/how-the-egg-board-designs-misleading-studies/ this] explanation.<ref>Transcript Tab: How the Egg Board Designs Misleading Studies | NutritionFacts.Org. Accessed July 6, 2019. https://nutritionfacts.org/video/how-the-egg-board-designs-misleading-studies/.
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</ref>
  
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{{jfa-expand | Notes to be deleted after integrating and before publication}}Undercover investigations at human certified farms show that the standards are not enforced and abuses still occur. One such investigation at Pitman Family Farms revealed that even the lowest level stipulation of "no cages no crowding", which is supposed to be adhered to for all animal foods sold at Whole Foods, is not even close to being enforced.
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Hopefully, a 2019 study that was published in the Journal of the American Medical Association will correct the public's perception of the issue. It finds that eating even small amounts of eggs daily significantly raises the risk for both cardiovascular disease and premature death. And the more eggs consumed, the higher the risk for stroke, coronary heart disease, and heart failure.<ref>Zhong, Victor W., Linda Van Horn, Marilyn C. Cornelis, John T. Wilkins, Hongyan Ning, Mercedes R. Carnethon, Philip Greenland, et al. “Associations of Dietary Cholesterol or Egg Consumption With Incident Cardiovascular Disease and Mortality.” JAMA 321, no. 11 (March 19, 2019): 1081–95. https://doi.org/10.1001/jama.2019.1572.</ref>
  
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According to one investigator of a Whole Foods certified chicken house they "replaced cages of wire with cages of flesh."
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=== Chicken Meat ===
  
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The video shows:
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It is commonly believed that white meat is healthier than red meat, and this belief is at least partially responsible for the 1,400 percent increase in the number of chickens bred and slaughtered for meat over the last 50 years.<ref>“Big Chicken: Pollution and Industrial Poultry Production in America.” Accessed July 6, 2019. http://pew.org/2yIxE4p</ref>
  
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Congestion so bad that in some areas the hens were piled on top of each other.
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But a 2019 study published in the American Journal of Clinical Nutrition says that there is no reason to choose white meat over red meat for the reduction of cardiovascular disease, and it recommends plant-based food for lowering the risk of cardiovascular disease.<ref>Bergeron, Nathalie, Sally Chiu, Paul T. Williams, Sarah M King, and Ronald M. Krauss. “Effects of Red Meat, White Meat, and Nonmeat Protein Sources on Atherogenic Lipoprotein Measures in the Context of Low Compared with High Saturated Fat Intake: A Randomized Controlled Trial.” The American Journal of Clinical Nutrition 110, no. 1 (July 1, 2019): 24–33. https://doi.org/10.1093/ajcn/nqz035.</ref>
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In other cases, birds received no more than a square foot of space.
 
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Chickens that had lost all or most of their feathers from the crowded filthy conditions. You could see the rashes, inflammation.
 
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Chickens bumping into each other and squawking in agitation.
 
  
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All animal protein, chicken or otherwise, carries risks that are not associated with plant protein. {{Embed:animal protein risks}}
  
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== Social Consequences of Chicken Production ==
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<li>Mutilations including de-toeing, clipping, beak trimming and other surgical procedures performed without anesthetic.
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Poultry workers suffer serious injuries at twice the rate of other industries and are more than six times as likely to have sickness related to work, according to the Occupational Safety and Health Administration (OSHA).<ref>“OSHA Poultry Slaughtering and Poultry Processing | Occupational Safety and Health Administration.” Accessed June 12, 2019. <nowiki>https://www.osha.gov/dep/enforcement/poultry_processing_10282015.html</nowiki>.</ref>
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<ul>
 
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<li>A group of veterinarians and other experts appointed by Parliament to look into farming practices concluded, "There is no physiological basis for the assertion that the operation is similar to the clipping of human fingernails. Between the horn and bone [of the beak] is a thin layer of highly sensitive soft tissue, resembling the quick of the human nail. The hot knife blade used in debeaking cuts through this complex horn, bone and sensitive tissue causing severe pain."<ref>“UPC Factsheet - Debeaking.” United Poultry Concerns, Inc. Accessed March 28, 2018. https://www.upc-online.org/merchandise/debeak_factsheet.html </ref></li>
 
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</ul>
 
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</li>
 
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</ul>
 
  
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OSHA data from 2013 reveals poultry workers suffer carpal tunnel syndrome seven times more than the average worker and that they are 4.5 times more likely to identify repetitive motion for serious injury.<ref>Cartwright, Michael S., Francis O. Walker, Jill N. Blocker, Mark R. Schulz, Thomas A. Arcury, Joseph G. Grzywacz, Dana Mora, Haiying Chen, Antonio J. Marín, and Sara A. Quandt. “The Prevalence of Carpal Tunnel Syndrome in Latino Poultry-Processing Workers and Other Latino Manual Workers.” ''Journal of Occupational and Environmental Medicine''54, no. 2 (February 2012): 198–201. <nowiki>https://doi.org/10.1097/JOM.0b013e31823fdf53</nowiki>.</ref><ref>Cartwright, Michael S., Francis O. Walker, Jill C. Newman, Mark R. Schulz, Thomas A. Arcury, Joseph G. Grzywacz, Dana C. Mora, Haiying Chen, Bethany Eaton, and Sara A. Quandt. “One-Year Incidence of Carpal Tunnel Syndrome in Latino Poultry Processing Workers and Other Latino Manual Workers.” ''American Journal of Industrial Medicine''57, no. 3 (March 2014): 362–69. <nowiki>https://doi.org/10.1002/ajim.22250</nowiki>.</ref><ref>Musolin, Kristin, Jessica G. Ramsey, James T. Wassell, and David L. Hard. “Prevalence of Carpal Tunnel Syndrome among Employees at a Poultry Processing Plant.” ''Applied Ergonomics''45, no. 6 (November 2014): 1377–83. <nowiki>https://doi.org/10.1016/j.apergo.2014.03.005</nowiki>.</ref>
  
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Only at Step 5 are chickens allowed to perch.
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The GAO also finds that workers are hesitant to speak up about the injuries for fear of retaliation, which suggests the problems may be underreported.<ref>Office, U. S. Government Accountability. “Workplace Safety and Health: Better Outreach, Collaboration, and Information Needed to Help Protect Workers at Meat and Poultry Plants,” no. GAO-18-12 (December 7, 2017). https://www.gao.gov/products/GAO-18-12.</ref>
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<ref>“GAP Chicken Standards.” Global Animal Partnership. Accessed April 2, 2018. https://globalanimalpartnership.org/5-step-animal-welfare-rating-program/chicken-standards-application/ </ref>
 
  
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<ul>
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The Union of Concerned Scientists concludes that with the increase in chicken-processing line speeds allowed by the USDA in late 2018, the situation will only get worse.<ref>“USDA Increases Line Speeds Endangering Poultry Processing Plant Workers.” Union of Concerned Scientists. Accessed June 12, 2019. <nowiki>https://www.ucsusa.org/center-science-and-democracy/attacks-on-science/usda-increases-line-speeds-endangering-poultry</nowiki>.</ref>
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<li>USDA Definition of Free Range for Chickens
 
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<ul>
 
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<li>Free range chickens are only required to have access to the outside, without reference to size or conditions of the space.<ref>“FSIS.” Food Safety Inspection Service, USDA, www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/food-labeling/meat-and-poultry-labeling-terms/</ref>.</li>
 
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</ul>
 
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</li>
 
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<li>What free range means in practice
 
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<ul>
 
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<li>A tiny door leading to a small concrete slab beside a chicken house holding hundreds of chickens.</li>
 
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<li>The term free-range does not carry any other conditions such as the number of chickens, space per chicken, or environmental quality.</li>
 
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</ul>
 
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</li>
 
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</ul>
 
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</li>
 
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<li>Cage-free is also meaningless.
 
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<ul>
 
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<li>It just means they are not in a cage. It doesn't mean they are not crowded to the extent that they cannot engage in natural behaviors, such as</li>
 
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</ul>
 
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</li>
 
  
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<li>Audits are infrequent, done by outside contractors, and announced (not suprise), and do not result in decertifications.
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== Meta ==
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<ul>
 
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<li>Research reveals no loss of certifications.</li>
 
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<li>GAP audits are required every 15 months.</li>
 
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<li>PETA sued Whole Foods Market on the grounds that the program deceived customers into paying higher prices for certified products.
 
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<ul>
 
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<li>According to the complaint, "the entire audit process for Whole Foods' animal welfare standards is a sham because it occurs infrequently and violations of the standards do not cause loss of certification...Standards that are not actually enforced create a false impression of ensuring a more humanely treated, higher quality animal product — when in fact they ensure no such thing."<ref>Moyer, Justin Wm. “Whole Foods’ Expensive, ‘Humanely Treated’ Meat Is a ‘Sham,’ PETA Lawsuit Claims.” Washington Post, September 22, 2015, sec. Morning Mix. https://www.washingtonpost.com/news/morning-mix/wp/2015/09/22/why-that-expensive-humanely-treated-whole-foods-meat-might-be-a-sham/ </ref></li>
 
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<li>The case was dismissed on a technicality, not because the deceptions were proven false, but because the complaint did not raise a consumer safety issue.<ref>Stempel, Jonathan. “Whole Foods Wins Dismissal of PETA Lawsuit over Meat Claims.” Reuters, April 27, 2016. https://www.reuters.com/article/whole-foods-mrkt-lawsuit/whole-foods-wins-dismissal-of-peta-lawsuit-over-meat-claims-idUSL2N17U11E </ref></li>
 
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</ul>
 
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</li>
 
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<li>The Open Philanthropy Project confirmed these suspicions.
 
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<ul>
 
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<li>For most animals on the program, GAP offers only offers small improvements over standard factory farming.</li>
 
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<li>Standards are not properly audited and enforced.</li>
 
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<li>Source
 
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<ul>
 
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<li>"In our view, the most credible criticism of GAP is that its standards are not as strict or rigorously enforced as they might be. In particular, a large portion of the 290 million animals covered by GAP standards are chickens and turkeys kept in Step 2 facilities, which represent only a slight improvement on standard factory farming conditions. We also think there have been issues with GAP’s contract auditors failing to properly enforce GAP’s standards. However, we believe these concerns are outweighed by the value of bringing new large producers into a regulatory scheme for the first time, under which they can be audited, regulated, and pushed toward higher standards. We are heartened to see that GAP is strengthening its broiler chicken standards,13 and we hope that this grant will allow it to improve its standards and enforcement of those standards further."<ref>“Global Animal Partnership.” Open Philanthropy Project, March 26, 2016. https://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support </ref></li>
 
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</ul>
 
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</li>
 
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</ul>
 
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</li>
 
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</ul>
 
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</li>
 
  
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<li>Under the requirement that farms be profitable, animals are still treated as units of production, not as living, breathing, sentient beings.</li>
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This article was originally authored by [[User:Greg.Fuller | Greg Fuller ]] and copy-edited by [[User:Isaac.Nickerson | Isaac Nickerson]]. The contents may have been edited since that time by others.
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<li>Humane labels are designed to make us feel better about what we are eating and to pay more. They seem to be more about marketing than about compassion.</li>
 
  
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<li>Some of the harms are systemic to the system.
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{{jfa-expand | Open Graph Share Image}}
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<ul>
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[[File:Chicken-share.png]]
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<li>Some of the cruelties are systemic to the production processes such that removing one or more of the cruelties would raise the price of the product, often to such an extent the product would no longer be affordable except to the richest among us.</li>
 
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<li>No matter which kind of harm we are talking about, conscious beings, beings that have a life they value, are hung up to bleed, passed around on conveyor belts, dragged through electrified water, sliced up into different products, and packaged in cellophane because we like to eat them.</li>
 
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<li>In the end, they are all slaughtered and lose a life they value.</li>
 
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| meta-title = Chickens
 
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| meta-image = {{filepath:{{PAGENAME:File:Chicken-share.png}}}}
 
| meta-description = This article covers various aspects of farmed chickens in the context of animal rights, including injustices and suffering, humane labels and certifications, chicken sentience and cognition, the environmental consequences of farming chickens, the health risks of chicken meat and eggs, and impacts to workers and neighborhoods.
 
| meta-description = This article covers various aspects of farmed chickens in the context of animal rights, including injustices and suffering, humane labels and certifications, chicken sentience and cognition, the environmental consequences of farming chickens, the health risks of chicken meat and eggs, and impacts to workers and neighborhoods.
 
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== Footnotes ==
 
<references />
 
<references />

Latest revision as of 08:19, 8 January 2020

This article provides summarized information about farmed chickens in the context of animal rights, including injustices and suffering, humane labels and certifications, chicken sentience and cognition, the environmental consequences of farming chickens, the health risks of chicken meat and eggs, and impacts to workers.

General Information

Lineage

It's commonly thought that the domesticated chickens used for meat and eggs are primarily descended from the red jungle fowl of Southeast Asia. More recent research paints a more complex picture—birds from India, Cambodia, Ceylon, and other areas may also be involved in the lineage.[1]

Chickens were used widely in Southeast Asia, India, and Tibet and were a common fixture in ancient Greece. Their exploitation in the West spread from Greece to Rome and then on to Europe and the Americas.[2]

Numbers

Globally, over 76 billion chickens are slaughtered annually for meat, and another 11 billion laying hens are slaughtered when their female reproductive systems are used up and they are no longer profitable.[3] In the United States alone, the figures are 9 billion and 375 million.[3] Far more chickens are slaughtered than any other farmed animal.[3]

A PEW report points out that "in just over 50 years, the number of chickens produced annually in the United States has increased by more than 1,400% while the number of farms producing those birds has dropped by 98%."[4]

The Sentience Institute used USDA and FDA data to estimate that 98 percent of chickens in the United States are raised in factory farming conditions.[5] It seems tenable that the percentage is similar in other industrialized nations.

Injustices and Suffering

The injustices inherent in exploiting chickens and other non-human animals stem from seeing them as commodities having only instrumental value, lacking any inherent worth apart from their usefulness to humans.

As Tom Regan put it, the animals we use "have a life of their own that is of importance to them, apart from their utility to us. They are not only in the world, they are aware of it and also of what happens to them. And what happens to them matters to them. Each has a life that fares experientially better or worse for the one whose life it is."

As shown in the section on sentience and cognition, chickens not only have a will to live and value their lives, just as humans do, but also have desires, preferences, emotions, families, social communities, natural behaviors, a sense of themselves, and a sense of the future.

The injustices discussed below—all arising from a failure to recognize the inherent worth of other sentient beings—are either standard practice or not unusual. And, as shown in the section below on humane labels and certifications, this is true even for products with a humane label or certification. To omit a significant number of these injustices would likely render the cost of such products unaffordable by all but the most affluent, and we would still have to slaughter them.

Loss of Life

We have no nutritional need for chicken meat or eggs, so denying chickens their lives is unnecessary, as are the other forms of suffering enumerated here.[6]

Not only are we taking their lives—we are doing so after allowing them to live only a small fraction of their natural eight-year life span. Chickens used for meat are slaughtered at six weeks, which is about one percent of their life span. Chickens used for eggs are slaughtered when their female reproductive systems are used up and they are no longer profitable—at 18 months, which is 20 percent of their natural life span.[7]

To take the life of any sentient being is to harm that being by depriving them of opportunities for fulfillment, even if it is done suddenly and painlessly (which it is not, as explained below).

Slaughter

Several methods of killing chickens are used, including manual throat slitting, neck breaking, decapitation, and gassing, all of which are painful.

In the United States, where there are no federal regulations for chicken welfare, the industry claims that 99 percent of the birds are "totally unconscious" after an electrical stun, which is administered in some facilities just prior to slaughter.[8] However, research shows that the industry uses low-voltage stuns in order to avoid damage that might render the carcass unsellable. The low voltage stuns are not effective, which results in many (if not most) chickens being alive and fully conscious when their throat is slit, and many remain alive as they enter the scalding tank.[9][10][11]

Mass Extermination of Male Hatchlings (Culling)

Because laying hens are bred specifically to lay eggs, males hatched from laying hens are not profitable—they don't yield sufficient meat, and they can't lay eggs. And because they are not profitable, the males are ground alive in a macerator, gassed, or suffocated—all shortly after they hatch.[12] This industry refers to this practice as chick culling. (Weak and struggling females are also discarded in this manner.)[13]

Hatchlings are about 50 percent male and 50 percent female. So statistically speaking, every laying hen has a brother who has been violently slaughtered. This is true even for backyard chickens, as the female hatchlings are sold not only to commercial producers but also to individuals keeping backyard chickens.

In the United States, over 375 million male chicks are slaughtered annually via culling. Worldwide, it's in the billions.[14]

Overcrowding and Confinement

Extreme crowding is the reality for the 98 percent of chickens living in factory farming conditions, regardless of whether they are in battery cages.[5]

While hens in battery cages spend their lives confined to a space smaller than the size of a standard sheet of paper,[18] chickens in commercial chicken houses don't fare much better. While they may not be confined to a cage, they are still entrapped by the mass of other chickens surrounding them.

The egregious ramifications of this crowding are discussed below.

Denial of Natural Behaviors

Crowding prevents or hinders chickens' ability to engage in their natural behaviors of preening, roosting, perching, spreading their wings, establishing a social order, pecking and scratching for food, and teaching their young to peck and scratch for food.[22] The denial of these behaviors due to living in such close quarters results not only in discomfort but also the constant psychological stress of fear and anxiety.[23][24][25]

Filth and Stench

The ammonia-laden air in the chicken houses is so noxious that the birds commonly suffer respiratory disorders, severe flesh and eye burns, and even blindness.[26]

Numerous videos and investigations document the filth and stench of urine, feces, feathers, and dander in chicken facilities. They show birds covered in feces and so weak that they cannot clean themselves. Some are stuck in manure so deep it could be described as a manure pit.[27][28]

Sickness and Disease

Numerous undercover videos show that sickness and disease are common. Some chickens are so sick you can hear them struggling to breathe. Some hens don't have the strength to stand on their own two legs. Some are barely able to move or respond to anything around them. Birds are found dead, dying, and emaciated.[27][28] Research and reports bear this out.[29][30][31]

Debilitating Selective Breeding

A laying hen produces more than 300 eggs a year, but the jungle fowl from which they are bred lay fewer than 10 eggs in a year. This causes both physical and physiological stress.[32] The large increase in the number of eggs laid is from a combination of selective breeding and hens' tendency to lay more eggs when eggs are removed so they can follow their instinct to form a proper brood.[33]

Laying hens are also bred to lay large eggs for which they have not evolved, which stresses their reproductive system and causes such problems as osteoporosis, bone breakage, and uterus prolapse.[34]

The modern broiler chicken is unnaturally large and has been bred to grow at an unnaturally fast rate and have large breasts. This selective breeding comes with serious welfare consequences, including leg disorders, skeletal, developmental and degenerative diseases, heart and lung problems, breathing difficulty, and premature death.[35]

Debeaking

Debeaking is painful, causes lasting suffering, impairs feeding, eliminates exploratory pecking, and contributes to lice from impaired preening.[36]

Rough Handling and Transport

When chickens raised for meat reach their desired slaughter weight, they are caught, crated, transported, unloaded, and placed in holding pens until slaughter.

A review of videos of these activities shows squawking birds being grabbed four at a time by their feet and roughly thrown or shoved into crowded crates, birds suffering dislocations and broken bones, wings and heads crushed in crates, birds dying from suffocation, hot and cold conditions, and birds unable to stand from exhaustion.[37][38]

Research bears this out—a 2016 study in Poultry Science reveals that in addition to the physiological stress these procedures inflict, it is not unusual for a bird to experience dehydration, disease, injury, pain, and even death. The injuries include wing and leg fractures, lesions, bleeding, bruising.[39]

Humane Labels and Certifications

Investigations by Consumer Reports and the Open Philanthropy Project (and others) reveal that humane-sounding labels and certifications are largely meaningless, as shown below. In general, these investigations reveal that the standards are weak and unenforced, audits and inspections are rarely done, and if they are done and violations are found, which is infrequent, no one gets fined.[40][41]

Pasture Raised

According to Consumer Reports, “government agencies have no common standard that producers have to meet to make a 'pasture raised' claim on a food label, no definition for ‘pasture,’ and no requirement for the claim to be verified through on-farm inspections.”[44]

Cage-Free

Consumer Reports advises you to “ignore cage-free claims” for chickens.[45] "'Cage-free' does not mean the chickens had access to the outdoors." It only means the chickens were not confined to a cage.[46]

Cage free chickens, like free-range chickens, may be confined not by a cage but by crowding so extreme that turning around and engaging in those previously mentioned natural behaviors of preening, nesting, foraging, dust bathing, and perching is difficult or impossible. Such extreme crowding in large metal warehouses is the norm, with each chicken allowed less than a square foot of space.[46]

Other conditions inside the warehouses add to the misery of the confined birds. To mention only one, for brevity's sake: the ammonia-laden air in the chicken houses is so noxious that the birds commonly suffer respiratory disorders, severe flesh and eye burns, and even blindness.[47]

Free Range

The USDA standard for free-range requires only that chickens are given some access to the outdoors. There are no stipulations for the size or quality of the outdoor space, and there is no requirement that the chickens actually spend time outdoors.[48] Also, the claim does not have to be verified through inspections.[49]

So it's not surprising that investigations by Consumer Reports (and others) reveal that most chickens labeled free-range spend their lives confined inside a crowded chicken house. The free-range space itself may be nothing more than an enclosed concrete slab that the chickens never use. These individuals lack the room even to turn around, much less engage in their natural behaviors of preening, nesting, foraging, dust bathing, and perching.[49]

This has led Consumer Reports to say that free range is one of the most potentially misleading labels because of the discrepancy between what it implies and what is required to make the claim."[49]

Only one percent of eggs are from free-range hens that have the option to go outdoors, but like the other 99 percent, even those hens have likely never actually been outdoors.[50]

Jonathan Foer, in his well-researched and fact-checked book[51] Eating Animals, sums it up well in saying that "the free-range label is bullshit" and "should provide no more peace of mind than 'all-natural,' 'fresh,' or 'magical.'"[52]

Whole Foods Market (GAP)

Whole Foods Market spearheaded the development of the Global Animal Partnership (GAP) certification program and sells various products, including eggs and chicken meat, with GAP labels.

The Open Philanthropy Project criticized Whole Foods' Global Animal Partnership (GAP) for having weak enforcement and for providing only slight improvements over standard factory farming conditions.[53]

Organic

Some have the perception that organic means humanely raised, but that is not the case. Organic farmers are free to treat their animals no better than non-organic farmers. This is because the USDA, which controls the organic label in the United States, ruled that the label does not allow "broadly prescriptive, stand-alone animal welfare regulations."[54]

Consumer Reports informs us that while there are organic standards relating to animals, they lack clarity and precision, letting producers with poor standards sell poultry and eggs.[55]

United Egg Producers Certified

Consumer Reports says that while the label is verified, "it is not meaningful as an animal welfare label because certain basic conditions, such as the freedom to move, are not required."[56]

Also according to Consumer Reports, "the UEP Certified guidelines allow continuous confinement in crowded cages in dimly lit buildings without natural light and fresh air. Hens only have to be given enough space to stand upright, with a minimum space requirement of 8 by 8 inches for white laying hens kept in a cage. Producers keeping their hens in cages do not have to allow the hens to move freely, perch, dust bathe, or forage, and nest boxes are not required. While the label is verified, it is not meaningful as an animal welfare label because certain basic conditions, such as the freedom to move, are not required."[57]

American Humane Certified

According to Consumer Reports, "the requirements fall short in meeting consumer expectations for a 'humane' label in many ways."[58]

Animal Welfare Approved

On their Greener Choices website, Animal Welfare Approved is the only certification that Consumer Reports says has strong standards, yet the standards still allow for mutilations[59] and other injustices.

Also, products with this label are challenging to find. A search using their own product finder reveals that it's unlikely you will find any products with this label at a grocery store near you.[60]

Certified Humane Raised and Handled

Consumer Reports says that "we do not rate Certified Humane as a highly meaningful label for animal welfare, because the standards do not have certain requirements that a majority of consumers expect from a 'humanely raised' label, such as access to the outdoors."[61]

Backyard Chickens

Although backyard chickens are not associated with a certification or label like the others that we are covering here, they deserve a closer look. A considerable number of people regard the practice of keeping chickens in the backyard for food as innocuous.

Baby chicks often die in transport. A quick search will find numerous reports of chicks being shipped alive to backyard hobbyists and dying in transport—and reports of those that make it being greatly stressed.

Backyard chickens are the same or similar varieties as commercial chickens and are subject to all of the abuses that result from culling and selective breeding, as discussed above.

Backyard hens are likely to be slaughtered when egg production wanes, preventing them from living out their natural lives. As one hobbyist euphemistically put it, "when the expenses outweigh the value, then changes have to be made."[62]

The slaughter of backyard chickens, whether laying hens or broiler chickens, is usually done by slitting the throat and waiting for the convulsing chicken to die its slow death. The slaughter is violent, cruel, and painful, just as with commercial operations.

Sentience and Cognition

While we are not suggesting that the degree of moral consideration given to an animal be based on their cognitive capacity, it seems that most people are unaware of the rich cognitive, emotional, and psychological lives that chickens experience, including their ability to experience happiness, boredom, and frustration.[63]

In her book on chicken behavior and intelligence, prominent animal neurobiologist Leslie J. Rogers says that "the cognitive abilities of some avian species may actually rival those of primates," and that "recent findings challenge assumptions that have been made about brain size and the superiority of the mammalian line of evolution."[64] This is not as far-fetched as it might seem—the chicken's forebrain is similar to the forebrain of mammals.[65]

Experiments show that chickens have a sense of the future and thus have an interest in continuing to live.[66][67] It is clear they can anticipate future events, exhibit self-control, and delay gratification.[68]

In the paper "Thinking chickens: a review of cognition, emotion, and behavior in the domestic chicken," Lori Marino examined 266 research articles in 16 peer-reviewed journals and found that chickens, among other capabilities…[69]

  • possess the capacity for episodic memory, which provides "evidence for an autobiographical sense of self in the past, present, and future"
  • exhibit self-control, a capacity not found in humans until age four and is associated with self-awareness and autonomy—the ability to think about and choose future outcomes
  • are capable of reasoning and logical inference
  • are as "emotionally and socially complex as most other birds and mammals in many areas"
  • can perform simple math and understand the ordinality of numbers
  • have self-awareness—"a subjective awareness of one’s identity, one’s body, and one’s thoughts through time, distinguished from others"
  • are capable of a wide range of emotions, including happiness, fear, anxiety, boredom, and frustration
  • "are behaviorally sophisticated, discriminating among individuals, exhibiting Machiavellian-like social interactions, and learning socially in complex ways that are similar to humans."
  • "have distinct personalities, just like all animals who are cognitively, emotionally, and behaviorally complex individuals"

Environmental Consequences

Chicken production, like other areas of animal agriculture, has a profoundly negative impact on the environment.

A 2008 report from the United Nations concludes that "the environmental impacts of the [poultry production] sector are substantial. Poultry production is associated with a variety of pollutants, including oxygen-demanding substances, ammonia, solids, nutrients (specifically nitrogen and phosphorus), pathogens, trace elements, antibiotics, pesticides, hormones, and odor and other airborne emissions." This substantial impact is on surface water, groundwater, air, and soil.[70]

The impact of chicken production on global greenhouse gas emissions is not as great as for cows, but at eight percent of the total for animal agriculture, it is still substantial.[71]

The poultry industry points to chicken production being less environmentally damaging than other species of farmed animal production because "chickens are the most efficient converters of feed into meat of all land-based livestock species."[72] But their calculations ignore the total impact on the environment that accrues because far more chickens are produced than any other animal.[3]

It's ironic that chickens that actually are free-range to some extent (which are a small minority of the birds labeled free-range, as discussed above) place a greater environmental burden in the areas of energy use, land use, and the potential for global warming, eutrophication, and acidification.[73]

Human Health, Nutrition

Eggs

Eggs contain no nutrients that cannot be easily obtained from plant-based sources. About 70 percent of egg calories are from fat (much of which is saturated), and eggs are loaded with cholesterol.[74] Also, eggs have zero fiber. So it would be disingenuous to say that eggs are healthy because they contain other nutrients when these other nutrients can easily be found in other foods.

It's telling that even the USDA, arguably the best friend animal agriculture could ask for, has told the egg industry that it is not allowed to say eggs are healthy or nutritious.[75]

The links between eggs and heart disease, cancer, and diabetes have been known for years.[76] But this has become controversial because most of the more recent egg studies have been funded by the egg industry,[77] resulting in misleading conclusions and sowing confusion about the topic.[78][79] If you are interested in exactly how the egg industry has rigged the results, see this explanation.[80]

Hopefully, a 2019 study that was published in the Journal of the American Medical Association will correct the public's perception of the issue. It finds that eating even small amounts of eggs daily significantly raises the risk for both cardiovascular disease and premature death. And the more eggs consumed, the higher the risk for stroke, coronary heart disease, and heart failure.[81]

Chicken Meat

It is commonly believed that white meat is healthier than red meat, and this belief is at least partially responsible for the 1,400 percent increase in the number of chickens bred and slaughtered for meat over the last 50 years.[82]

But a 2019 study published in the American Journal of Clinical Nutrition says that there is no reason to choose white meat over red meat for the reduction of cardiovascular disease, and it recommends plant-based food for lowering the risk of cardiovascular disease.[83]

All animal protein, chicken or otherwise, carries risks that are not associated with plant protein. A review by Dr. Sofia Ochoa cites 42 studies showing that animal protein:[84]

  • elevates hormone-insulin-like growth factor-1 (IGF-1), which stimulates cell division and growth in both healthy and cancer cells and "has been consistently associated with increased cancer risk, proliferation, and malignancy"
  • "results in us having higher circulating levels of trimethylamine N-oxide (TMAO)," which "injures the lining of our vessels, creates inflammation, and facilitates the formation of cholesterol plaques in our blood vessels"
  • causes the overproduction of the hormone fibroblast growth factor 23 (FGF23), which damages our blood vessels, can "lead to enlargement of the cardiac ventricle, and is associated with heart attacks, sudden death, and heart failure"
  • can result in the overabsorption of heme iron, causing the conversion of other oxidants into highly reactive free radicals that "can damage different cell structures like proteins, membranes, and DNA" (heme iron "has also been associated with many kinds of gastrointestinal cancers")
  • can result in a higher incidence of bone fractures because of animal protein's high concentrations of sulfur
  • contributes to atherosclerosis—plaques of cholesterol that accumulate in the lining of our vessels; this condition is far less common on a vegan diet because absorbable cholesterol is not found in plants

Social Consequences of Chicken Production

Poultry workers suffer serious injuries at twice the rate of other industries and are more than six times as likely to have sickness related to work, according to the Occupational Safety and Health Administration (OSHA).[85]

OSHA data from 2013 reveals poultry workers suffer carpal tunnel syndrome seven times more than the average worker and that they are 4.5 times more likely to identify repetitive motion for serious injury.[86][87][88]

The GAO also finds that workers are hesitant to speak up about the injuries for fear of retaliation, which suggests the problems may be underreported.[89]

The Union of Concerned Scientists concludes that with the increase in chicken-processing line speeds allowed by the USDA in late 2018, the situation will only get worse.[90]

Meta

This article was originally authored by Greg Fuller and copy-edited by Isaac Nickerson. The contents may have been edited since that time by others.

Footnotes

  1. ↑ Smith, Page, and Charles Daniel. The Chicken Book. Athens: University of Georgia Press, 2000, 11-13.
  2. ↑ ibid.,16-30.
  3. ↑ 3.0 3.1 3.2 3.3 Derived from United Nations FAO statistics for 2017: “FAOSTAT.” Accessed June 10, 2019. http://www.fao.org/faostat/en/#data/QL
  4. ↑ “Big Chicken: Pollution and Industrial Poultry Production in America.” Accessed July 6, 2019. http://pew.org/2yIxE4p.
  5. ↑ 5.0 5.1 Institute, Sentience. “US Factory Farming Estimates.” Sentience Institute, April 11, 2019. http://www.sentienceinstitute.org/us-factory-farming-estimates.
  6. ↑ In reply to: We need animal products to be healthy
  7. ↑ “Overview - Facts - Aussie Abattoirs | Slaughterhouses, Killing Animals for Human Consumption.” Accessed June 12, 2019. https://www.aussieabattoirs.com/facts.
  8. ↑ “National Chicken Council Brief on Stunning of Chickens.” The National Chicken Council (blog), February 8, 2013. https://www.nationalchickencouncil.org/national-chicken-council-brief-on-stunning-of-chickens/.
  9. ↑ Shields, Sara J., and A. B. M. Raj. “A Critical Review of Electrical Water-Bath Stun Systems for Poultry Slaughter and Recent Developments in Alternative Technologies.” Journal of Applied Animal Welfare Science13, no. 4 (September 17, 2010): 281–99. https://doi.org/10.1080/10888705.2010.507119.
  10. ↑ Pitney, Nico. “Scientists Believe The Chickens We Eat Are Being Slaughtered While Conscious.” HuffPost, 24:58 400AD. https://www.huffpost.com/entry/chickens-slaughtered-conscious_n_580e3d35e4b000d0b157bf98.
  11. ↑ “Welfare at Slaughter of Broiler Chickens: A Review.” Accessed June 12, 2019. https://doi.org/10.3923/ijps.2008.1.5.
  12. ↑ Aerts, S., and J. De Tavernier. “11. Killing Animals as a Matter of Collateral Damage.” In The End of Animal Life: A Start for Ethical Debate, 167–86. Wageningen Academic Publishers, 2015. https://doi.org/10.3920/978-90-8686-808-7_11.
  13. ↑ “What Happens with Male Chicks in the Egg Industry? – RSPCA Knowledgebase.” Accessed June 10, 2019. https://kb.rspca.org.au/knowledge-base/what-happens-with-male-chicks-in-the-egg-industry/
  14. ↑ Estimated from 2017 data: “FAOSTAT.” Accessed June 10, 2019. http://www.fao.org/faostat/en/#data/QL.
  15. ↑ “United Egg Producers Statement on Eliminating Male Chick Culling.” UEP Certified (blog), June 10, 2016. https://uepcertified.com/united-egg-producers-statement-eliminating-male-chick-culling/.
  16. ↑ https://www.huffpost.com/entry/egg-producers-killing-male-chicks-stop_n_575b0adde4b00f97fba8406f
  17. ↑ Daley, Jason. “A German Grocery Chain Is Selling First-Of-Its-Kind ‘No-Kill’ Eggs.” Smithsonian. Accessed June 10, 2019. https://www.smithsonianmag.com/smart-news/what-no-kill-eggs-are-now-available-berlin-supermarkets-180971117/
  18. ↑ Friedrich, Bruce, ContributorExecutive Director, and The Good Food Institute. “The Cruelest of All Factory Farm Products: Eggs From Caged Hens.” HuffPost, 13:29 500. https://www.huffpost.com/entry/eggs-from-caged-hens_b_2458525.
  19. ↑ “A Decade Later, Another ‘Cage-Free’ Measure Is on the California Ballot.” Civil Eats, October 25, 2018. https://civileats.com/2018/10/25/a-decade-later-another-cage-free-measure-is-on-the-california-ballot/.
  20. ↑ “Cage-Free Commitments.” Accessed June 10, 2019. https://welfarecommitments.com/cage-free/.
  21. ↑ “United Egg Producers Statement on Eliminating Male Chick Culling.” UEP Certified (blog), June 10, 2016. https://uepcertified.com/united-egg-producers-statement-eliminating-male-chick-culling/.
  22. ↑ Prescott, N.B. and Wathes, C.M., (2002). Preference and motivation of laying hens to eat under different illuminances and the effect of illuminance on eating behavior.  British Poultry Science, 43: 190-195
  23. ↑ Eugen, Kaya von, Rebecca E. Nordquist, Elly Zeinstra, and Franz Josef van der Staay. “Stocking Density Affects Stress and Anxious Behavior in the Laying Hen Chick During Rearing.” Animals : An Open Access Journal from MDPI9, no. 2 (February 10, 2019). https://doi.org/10.3390/ani9020053.
  24. ↑ Appleby, M.C. “What Causes Crowding? Effects of Space, Facilities and Group Size on Behavior, with Particular Reference to Furnished Cages for Hens.” Animal Welfare13 (August 1, 2004): 313–20.
  25. ↑ Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” Animal Cognition20, no. 2 (2017): 127–47. https://doi.org/10.1007/s10071-016-1064-4.
  26. ↑ “Ammonia Toxicity in Chickens.” PoultryDVM. Accessed October 25, 2018. http://www.poultrydvm.com/condition/ammonia-burn
  27. ↑ 27.0 27.1 Direct Action Everywhere. Truth Matters: DxE Investigators Expose “Humane” Fraud at Whole Foods. Accessed April 2, 2018. https://www.youtube.com/watch?v=yU4PJCuslD0
  28. ↑ 28.0 28.1 “Chicken Videos Living Condiitons - Google Search. https://www.google.com/search?q=chicken+videos+living+condiitons
  29. ↑ Adams, A. W., and J. V. Craig. “Effect of Crowding and Cage Shape on Productivity and Profitability of Caged Layers: A Survey.” Poultry Science 64, no. 2 (February 1, 1985): 238–42. https://doi.org/10.3382/ps.0640238.
  30. ↑ Lawrence, Felicity. “If Consumers Knew How Farmed Chickens Were Raised, They Might Never Eat Their Meat Again.” The Observer, April 24, 2016, sec. Environment. https://www.theguardian.com/environment/2016/apr/24/real-cost-of-roast-chicken-animal-welfare-farms.
  31. ↑ “Diseases of Poultry | Mississippi State University Extension Service.” Accessed June 18, 2019. http://extension.msstate.edu/agriculture/livestock/poultry/diseases-poultry.
  32. ↑ Cheng, H.-W. “Breeding of Tomorrow’s Chickens to Improve Well-Being.” Poultry Science 89, no. 4 (April 1, 2010): 805–13. https://doi.org/10.3382/ps.2009-00361
  33. ↑ Rutherford-Fortunati, Rutherford-Fortunati on. “Do Chickens Mourn the Loss of Their Eggs?,” June 29, 2012. http://gentleworld.org/a-chickens-relationship-with-her-eggs/
  34. ↑ Jamieson, Alastair. “Large Eggs Cause Pain and Stress to Hens, Shoppers Are Told,” March 11, 2009, sec. Finance. https://www.telegraph.co.uk/finance/newsbysector/retailandconsumer/4971966/Large-eggs-cause-pain-and-stress-to-hens-shoppers-are-told.html
  35. ↑ Stevenson, Peter. “Leg and Heart Problems in Broiler Chickens.” Compassion in World Farming, January 2003. https://www.ciwf.org.uk/media/3818898/leg-and-heart-problems-in-broilers-for-judicial-review.pdf
  36. ↑ “Welfare Implications of Beak Trimming.” American Veterinary Medical Association, February 7, 2010. https://www.avma.org/KB/Resources/LiteratureReviews/Pages/beak-trimming-bgnd.aspx
  37. ↑ “Chicken Loading and Transportation - Google Search.” Accessed June 12, 2019. https://www.google.com/search?q=chicken+loading+and+transportation
  38. ↑ “Chickens Suffer during Catching, Loading, and Transport.” Accessed June 12, 2019. https://www.helpthechickens.ca/transport.php.
  39. ↑ Jacobs, Leonie, Evelyne Delezie, Luc Duchateau, Klara Goethals, and Frank A. M. Tuyttens. “Impact of the Separate Pre-Slaughter Stages on Broiler Chicken Welfare.” Poultry Science96, no. 2 (February 1, 2017): 266–73. https://doi.org/10.3382/ps/pew361.
  40. ↑ Consumer Reports “Labels.” Greener Choices (blog). Accessed July 6, 2019. http://greenerchoices.org/labels/
  41. ↑ Global Animal Partnership.” Open Philanthropy Project, March 26, 2016. https://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support
  42. ↑ Consumer Reports “Labels.” Greener Choices (blog). Accessed July 6, 2019. http://greenerchoices.org/labels/
  43. ↑ Global Animal Partnership.” Open Philanthropy Project, March 26, 2016. https://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support
  44. ↑ “Pasture Raised” Greener Choices | Consumer Reports, April 4, 2017. Accessed October 2, 2018. http://greenerchoices.org/2017/04/26/pasture-raised/
  45. ↑ “A ‘Cage-Free’ Claim: Does It Add Value?” Greener Choices |Consumer Reports, March 5, 2018. Accessed October 2, 2018. http://greenerchoices.org/2018/03/05/cage-free-add-value/
  46. ↑ 46.0 46.1 What Does ‘Cage Free’ Mean?” Greener Choices | Consumer Reports, February 6, 2017. Accessed October 2, 2018. http://greenerchoices.org/2017/02/06/cage-free-mean/
  47. ↑ “Ammonia Toxicity in Chickens.” PoultryDVM. Accessed October 25, 2018. http://www.poultrydvm.com/condition/ammonia-burn
  48. ↑ “FSIS.” Food Safety Inspection Service, USDA, http://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/food-labeling/meat-and-poultry-labeling-terms
  49. ↑ 49.0 49.1 49.2 “What Does ‘Free Range’ Mean?” Greener Choices | Consumer Reports, April 25, 2017. Accessed October 4, 2018. http://greenerchoices.org/2017/04/25/free-range/
  50. ↑ “A Hen’s Space to Roost.” New York Times, August 15, 2010. http://graphics8.nytimes.com/packages/pdf/weekinreview/20100815-chicken-cages.pdf
  51. ↑ Yonan, Joe. “Book Review: Eating Animals by Jonathan Safran Foer,” November 22, 2009. http://www.washingtonpost.com/wp-dyn/content/article/2009/11/20/AR2009112001684.html
  52. ↑ Foer, Jonathan Safran. Eating Animals. Little, Brown, 2009, 102.
  53. ↑ “Global Animal Partnership.” Open Philanthropy Project, March 26, 2016. https://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support
  54. ↑ Whoriskey, Peter. “Should ‘USDA Organic’ Animals Be Treated More Humanely? The Trump Administration Just Said No.” Washington Post, December 15, 2017. Accessed October 2, 2018. https://www.washingtonpost.com/news/wonk/wp/2017/12/15/should-usda-organic-animals-be-treated-more-humanely-the-trump-administration-just-said-no/
  55. ↑ “Do You Care about Animal Welfare on Organic Farms?” Greener Choices | Consumer Reports, February 6, 2018. Accessed October 2, 2018. http://greenerchoices.org/2018/02/06/care-animal-welfare-organic-farms/
  56. ↑ “United Egg Producers Certified.” Greener Choices | Consumer Reports, March 23, 2017. Accessed October 3, 2018. http://greenerchoices.org/2017/03/23/united-egg-producers-certified/
  57. ↑ “United Egg Producers Certified.” Greener Choices | Consumer Reports, March 23, 2017. Accessed October 1, 2018. http://greenerchoices.org/2017/03/23/united-egg-producers-certified/
  58. ↑ “American Humane Certified.” Consumer Reports—Greener Choices | Consumer Reports, January 11, 2017 Accessed October 2, 2018. http://greenerchoices.org/2017/01/11/american-humane-certified/
  59. ↑ “Animal Welfare Approved.” Greener Choices |Consumer Reports, November 16, 2016. Accessed October 2, 2018. http://greenerchoices.org/2016/11/16/awa-label-review/
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  62. ↑ “At What Age Do You Kill a Laying Hen?” BackYard Chickens. Accessed November 2, 2018. https://www.backyardchickens.com/threads/at-what-age-do-you-kill-a-laying-hen.837302/
  63. ↑ Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” Animal Cognition20, no. 2 (2017): 127–47. https://doi.org/10.1007/s10071-016-1064-4
  64. ↑ Rogers, Lesley J. The Development of Brain and Behaviour in the Chicken. CAB International, 1995. 214.
  65. ↑ Jarvis, Erich D., Onur Güntürkün, Laura Bruce, András Csillag, Harvey Karten, Wayne Kuenzel, Loreta Medina, et al. “Avian Brains and a New Understanding of Vertebrate Brain Evolution.” Nature Reviews Neuroscience 6, no. 2 (February 2005): 151. https://doi.org/10.1038/nrn1606.
  66. ↑ Friday, 15 July 2005 Jennifer ViegasDiscovery News. “Chickens Worry about the Future.” Item, July 15, 2005. https://www.abc.net.au/science/articles/2005/07/15/1415178.htm.
  67. ↑ Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” Animal Cognition 20, no. 2 (2017): 127–47. https://doi.org/10.1007/s10071-016-1064-4.
  68. ↑ Abeyesinghe, S. M., C. J. Nicol, S. J. Hartnell, and C. M. Wathes. “Can Domestic Fowl, Gallus Gallus Domesticus, Show Self-Control?” Animal Behaviour 70, no. 1 (July 1, 2005): 1–11. https://doi.org/10.1016/j.anbehav.2004.10.011.
  69. ↑ Marino, Lori. “Thinking Chickens: A Review of Cognition, Emotion, and Behavior in the Domestic Chicken.” Animal Cognition20, no. 2 (2017): 127–47. https://doi.org/10.1007/s10071-016-1064-4.
  70. ↑ Gerber, Paul R., Carolyn Opio, and Henning Steinfeld. “Poultry Production and the Environment – a Review.” Animal Production and Health Division, Food and Agriculture Organization of the United Nations, 2008.
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  72. ↑ Kite, Vivien. “How Sustainable Is Chicken Farming?” ACMF (blog), June 2, 2014. https://www.chicken.org.au/how-sustainable-is-chicken-farming/
  73. ↑ Rodic, Vesna, Lidija Peric, Mirjana Đukić Stojčić, and Natasa Vukelić. “The Environmental Impact of Poultry Production.” Biotechnology in Animal Husbandry 27 (January 1, 2011): 1673–79. https://doi.org/10.2298/BAH1104673R.
  74. ↑ “Egg Nutrition Facts Labels | Large Egg Calories and Protein.” Egg Nutrition Center (blog). Accessed July 6, 2019. https://www.eggnutritioncenter.org/egg-nutrition-facts-panels/.
  75. ↑ Transcript tab: "Flashback Friday: Who Says Eggs Aren’t Healthy or Safe? | NutritionFacts.Org.” Accessed July 5, 2019. https://nutritionfacts.org/video/flashback-friday-who-says-eggs-arent-healthy-or-safe/.
  76. ↑ “What’s Wrong with Eggs?” Forks Over Knives, September 3, 2013. https://www.forksoverknives.com/whats-wrong-with-eggs/
  77. ↑ “Egg Industry Continues to Influence Dietary Guidelines, FOIA Document Reveals.” Physicians Committee for Responsible Medicine. Accessed July 6, 2019. https://www.pcrm.org/news/news-releases/egg-industry-continues-influence-dietary-guidelines-foia-document-reveals.
  78. ↑ Nestle, Marion. “Food Industry Funding of Nutrition Research: The Relevance of History for Current Debates.” JAMA Internal Medicine 176, no. 11 (November 1, 2016): 1685–86. https://doi.org/10.1001/jamainternmed.2016.5400.
  79. ↑ “Egg Industry Funded Studies - Google Search.” Google Search. Accessed July 5, 2019. https://www.google.com/search?q=egg+industry+funded+studies.
  80. ↑ Transcript Tab: How the Egg Board Designs Misleading Studies | NutritionFacts.Org. Accessed July 6, 2019. https://nutritionfacts.org/video/how-the-egg-board-designs-misleading-studies/.
  81. ↑ Zhong, Victor W., Linda Van Horn, Marilyn C. Cornelis, John T. Wilkins, Hongyan Ning, Mercedes R. Carnethon, Philip Greenland, et al. “Associations of Dietary Cholesterol or Egg Consumption With Incident Cardiovascular Disease and Mortality.” JAMA 321, no. 11 (March 19, 2019): 1081–95. https://doi.org/10.1001/jama.2019.1572.
  82. ↑ “Big Chicken: Pollution and Industrial Poultry Production in America.” Accessed July 6, 2019. http://pew.org/2yIxE4p
  83. ↑ Bergeron, Nathalie, Sally Chiu, Paul T. Williams, Sarah M King, and Ronald M. Krauss. “Effects of Red Meat, White Meat, and Nonmeat Protein Sources on Atherogenic Lipoprotein Measures in the Context of Low Compared with High Saturated Fat Intake: A Randomized Controlled Trial.” The American Journal of Clinical Nutrition 110, no. 1 (July 1, 2019): 24–33. https://doi.org/10.1093/ajcn/nqz035.
  84. ↑ Ochoa, MD, Sofia Pineda. “7 Ways Animal Protein Is Damaging Your Health.” Forks Over Knives, December 31, 2016. Accessed October 22, 2019. https://www.forksoverknives.com/animalproteindangers/.
  85. ↑ “OSHA Poultry Slaughtering and Poultry Processing | Occupational Safety and Health Administration.” Accessed June 12, 2019. https://www.osha.gov/dep/enforcement/poultry_processing_10282015.html.
  86. ↑ Cartwright, Michael S., Francis O. Walker, Jill N. Blocker, Mark R. Schulz, Thomas A. Arcury, Joseph G. Grzywacz, Dana Mora, Haiying Chen, Antonio J. Marín, and Sara A. Quandt. “The Prevalence of Carpal Tunnel Syndrome in Latino Poultry-Processing Workers and Other Latino Manual Workers.” Journal of Occupational and Environmental Medicine54, no. 2 (February 2012): 198–201. https://doi.org/10.1097/JOM.0b013e31823fdf53.
  87. ↑ Cartwright, Michael S., Francis O. Walker, Jill C. Newman, Mark R. Schulz, Thomas A. Arcury, Joseph G. Grzywacz, Dana C. Mora, Haiying Chen, Bethany Eaton, and Sara A. Quandt. “One-Year Incidence of Carpal Tunnel Syndrome in Latino Poultry Processing Workers and Other Latino Manual Workers.” American Journal of Industrial Medicine57, no. 3 (March 2014): 362–69. https://doi.org/10.1002/ajim.22250.
  88. ↑ Musolin, Kristin, Jessica G. Ramsey, James T. Wassell, and David L. Hard. “Prevalence of Carpal Tunnel Syndrome among Employees at a Poultry Processing Plant.” Applied Ergonomics45, no. 6 (November 2014): 1377–83. https://doi.org/10.1016/j.apergo.2014.03.005.
  89. ↑ Office, U. S. Government Accountability. “Workplace Safety and Health: Better Outreach, Collaboration, and Information Needed to Help Protect Workers at Meat and Poultry Plants,” no. GAO-18-12 (December 7, 2017). https://www.gao.gov/products/GAO-18-12.
  90. ↑ “USDA Increases Line Speeds Endangering Poultry Processing Plant Workers.” Union of Concerned Scientists. Accessed June 12, 2019. https://www.ucsusa.org/center-science-and-democracy/attacks-on-science/usda-increases-line-speeds-endangering-poultry.
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