她说自由放养的鸡比工厂化饲养出的鸡好吃多了。
She says that free-range chickens taste much better than factory-farmed ones.
毕竟奶和蛋是产生热量的非常有效的方式，仅次于工厂化饲养的肉鸡。
After all, milk and eggs are very efficient ways of producing animal calories, second only to factory-reared broiler chickens.
大型工厂化饲养场产生的粪便是对全国水源和饮用水供应的最大威胁之一。
Wastes from large factory farms are among the greatest threats to our nation's waters and drinking water supplies.
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