那么是不是所谓的猪流感真的仅仅不过是又一个与养殖场有关的环境问题呢？
So is so-called swine flu really just another environmental problem associated with factory farming?
首先采取适当的监测行动，然后将病猪或有患病危险的猪扑杀，对猪的移动进行控制并对养殖场采取生物安全措施是控制这一疫病的关键。
Proper surveillance followed by killing infected animals or animals at risk, movement control of animals and biosecurity on farms is essential to get the disease under control.
大约一万九千家禽养殖场被称为“集中喂养动物作业” （1），这些养殖场可饲养十万只鸡，七百头奶牛或两千五百头猪。
About 19,000 farms are designated as “concentrated animal feeding operations”, with more than 100,000 hens, 700 dairy cows or 2,500 pigs.
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