美国在1997年实施禁止给牛和其他反刍动物饲喂牛副产品的措施之后，禽肉的消费在整个肉产品的消费中增加了5%。
The United States imposed a ban on feeding beef byproducts to cattle and other cud-chewing animals in 1997, Meat byproducts constitute up to 5 percent of the poultry diet in the United States.
事实上没有一个克雅氏病案例与食用养殖鱼类有关，但并不能保证牛的副产品饲养鱼是安全的。
The fact that no cases of Creutzfeldt Jakob disease have been linked to eating farmed fish does not assure that feeding rendered cow parts to fish is safe.
事实上没有一个克雅氏病案例与食用养殖鱼类有关，但并不能保证牛的副产品饲养鱼是安全的。
The fact that no cases of Creutzfeldt Jakob disease have been linked to eating farmed fish does not assure that feeding rendered cow parts to fish is safe.
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