近年来，随着人们自我保健意识的增强，消费观念发生了根本性的改变。畜禽产品品质的优劣成了决定人们是否需求的关键所在。一些无污染、无公害的食品越来越受到人们的青睐。因此，为了人类的健康，畜牧业也必须加大科技含量，调整产业结构，让无污染、无残留和无公害的绿色食? In recent years, as people’s self-care awareness increases, the concept of consumption has undergone fundamental changes. The quality of livestock products has become the key to determining whether people demand. Some pollution-free, pollution-free food more and more people of all ages. Therefore, in order to human health, animal husbandry must also increase the scientific and technological content, adjust the industrial structure, so that pollution-free, non-residue and pollution-free green food?