Industrial AgricultureThe Reality of Feed at Animal Factories

union of concerned scientists  ユニオン オブ コンサーンド サイエンティスツス

When many Americans think of farm animals, they picture cattle munching grass on rolling pastures, chickens pecking on the ground outside of picturesque red barns, and pigs gobbling down food at the trough.


Over the last 50 years, the way food animals are raised and fed has changed dramatically—to the detriment of both animals and humans. Many people are surprised to find that most of the food animals in the United States are no longer raised on farms at all. Instead they come from crowded animal factories, also known as large confined animal feeding operations (CAFOs).

最近の50年以上、食肉用家畜の飼育方法は動物と人双方にとって害を与えだすほど劇的な変化を遂げている。多くの人は 殆どの食肉用家畜は農場で育てられていないのを知って驚く。代わりに動物達はLarge confined animal feeding opertions ( CAFOs ) ラージ コンファインド アニマル フィーディング オペレーションズ“大規模に囲まれた動物飼育方法”と呼ばれる場所からやって来る。

Just like other factories, animal factories are constantly searching for ways to shave their costs. To save money, they've redefined what constitutes animal feed, with little consideration of what is best for the animals or for human health. As a result, many of the ingredients used in feed these days are not the kind of food the animals are designed by nature to eat.


Just take a look at what's being fed to the animals you eat.

Same Species Meat
Diseased Animals
Feathers, Hair, Skin, Hooves, and Blood
Manure and Other Animal Waste
Drugs and Chemicals
Unhealthy Amounts of Grains

Are these ingredients legal? Unfortunately, yes. Nevertheless, some raise human health concerns. Others just indicate the low standards for animal feeds. But all are symptoms of a system that has lost sight of the appropriate way to raise food animals.

この様な材料は合法なのだろうか?答えは残念ながら….イエス。合法にも拘らず、ある材料は人間の健康に取って安全かどうか疑問があり、又 他の材料はそれらが材料に含まれている事自体が、何が飼料に適しているかと言う基準の低さを示している。然し、この全ては食肉用家畜を飼育するシステムが動物を育てる適切な方法を見失った為の結果である。

Same Species Meat, Diseased Animals, and Feathers, Hair, Skin, and Blood


The advent of "mad cow" disease (also known as bovine spongiform encephalopathy or BSE) raised international concern about the safety of feeding rendered[1] cattle to cattle. Since the discovery of mad cow disease in the United States, the federal government has taken some action to restrict the parts of cattle that can be fed back to cattle.


However, most animals are still allowed to eat meat from their own species. Pig carcasses can be rendered and fed back to pigs, chicken carcasses can be rendered and fed back to chickens, and turkey carcasses can be rendered and fed back to turkeys. Even cattle can still be fed cow blood and some other cow parts.


Under current law, pigs, chickens, and turkeys that have been fed rendered cattle can be rendered and fed back to cattle—a loophole that may allow mad cow agents to infect healthy cattle.


Animal feed legally can contain rendered road kill, dead horses, and euthanized cats and dogs.


euthanized はeuthanatized の間違いではないかと思います。Euthanatize は安楽死させる。と言う意味。
euthanatized は安楽死させられた。と言う意味。

Rendered feathers, hair, skin, hooves, blood, and intestines can also be found in feed, often under catch-all categories like "animal protein products."


Manure and Other Animal Waste


Feed for any food animal can contain cattle manure, swine waste, and poultry litter. This waste may contain drugs such as antibiotics and hormones that have passed unchanged through the animals' bodies.


The poultry litter that is fed to cattle contains rendered cattle parts in the form of digested poultry feed and spilled poultry feed. This is another loophole that may allow mad cow agents to infect healthy cattle.

牛に与えられた鶏糞は リサイクル精製処理された牛の一部を 消化吸収された鶏糞と言う形やこぼれた養鶏飼料としての形でで含んでいる可能性がある。此れは狂牛病が健康な牛に感染する別の形の悪循環である。


Animal waste used for feed is also allowed to contain dirt, rocks, sand, wood, and other such contaminants.




Many animals need roughage to move food through their digestive systems. But instead of using plant-based roughage, animal factories often turn to pellets made from plastics to compensate for the lack of natural fiber in the factory feed.


Drugs and Chemical


Animals raised in humane conditions with appropriate space and food rarely require medical treatment. But animals at animal factories often receive antibiotics to promote faster growth and to compensate for crowded, stressful, and unsanitary living conditions. An estimated 13.5 million pounds of antibiotics—the same classes of antibiotics used in human medicine—are routinely added to animal feed or water. This routine, nontherapeutic use of antibiotics speeds the development of antibiotic-resistant bacteria, which can infect humans as well as animals. Antibiotic resistance is a pressing public health problem that costs the U.S. economy billions of dollars each year.



Some of the antimicrobials used to control parasites and promote growth in poultry contain arsenic, a known human carcinogen. Arsenic can be found in meat or can contaminate human water supplies through runoff from factory farms.


Unhealthy Amounts of Grains


One last surprise. While grain may sound like a healthful food, the excessive quantities fed to some animals are not. This is especially true for cattle, which are natural grass eaters. Their digestive systems are not designed to handle the large amounts of corn they receive at feedlots. As a result of this corn-rich diet, feedlot cattle can suffer significant health problems, including excessively acidic digestive systems and liver abscesses. Grain-induced health problems, in turn, ramp up the need for drugs.


Want to Change What Animals are Fed?


The rise in animal factories over the last 50 years has led to a system that is out of control. Mad cow disease, increased liver abscesses, and the rise of antibiotic-resistant bacteria are just some examples of the damage that comes from unwise and often inhumane approaches to raising food animals.


As a consumer armed with information, you have the power to promote a modern approach to raising animals that is both productive and healthful. You can help to effect change by supporting systems and producers that feed animals the food they were meant to eat.


You can:


Avoid factory farmed animal products altogether by choosing plant-based foods.


Choose grass-fed and grass-finished beef and dairy products and pasture-raised pork, poultry, and egg products.


Select certified organic meats, eggs, and dairy and those clearly labeled as using only vegetarian animal feed.


Purchase meats, eggs, and dairy products from local farmers on the farm, at farmers markets, or by buying a share from a local farmer as part of a Community Supported Agriculture (CSA) program.

地域の農家か農家の開催する市(マーケット)で食肉、卵、酪農製品を購入するか、若しくは地域社会に支えられた農業計画?(Community Supported Agriculture Program)に出資する。

Community Supported Agriculture Program

[1] Rendering is an industrial process in which animal carcasses, parts, and other wastes are ground up, heated, and further processed to create a variety of products, including animal feed ingredients. Meat and bone meal, blood meal, and feather meal are some examples of rendered products.


Rendering レンダリング(此処ではリサイクル精製処理と訳しましたが、もっと良い言葉がありましたらコメントして下さい。)
この記事はunion of conerned scientists と言うウエッブサイトからの記事です。

Warning: disturbing footage. Undercover investigation at Chinos Hallmark/Westland slaughterhouse

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テーマ : 英語 - ジャンル : 学問・文化・芸術