The domestic animal disease, particularly the contagion diseases is big enemies to livestock husbandry and prodution, which restrict the developments of the livestock husbandry.
家畜疾病，尤其是一些传染性疚病是畜牧业生产的大敌，过度使用药物又会造成食品污染。
The domestic animal disease, particularly the contagion diseases is big enemies to livestock husbandry and prodution, which restrict the developments of the livestock husbandry.
家畜疾病，尤其是一些传染性疚病是畜牧业生产的大敌，过度使用药物又会造成食品污染。
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