Those who know little about modern factory farming may wonder why such legislation would be necessary. Under farming methods that were universal 50 years ago, and that are still common in some countries today, all animals have the space to turn around and stretch their limbs.
那些不太了解现代化工厂养殖的人可能会疑惑有什么必要制定这样的法律。按照50年非常流行、今天在某些乡村地区也仍在沿用的养殖方式，所有动物都不缺少转身和伸展肢体的空间。