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狗狗容易生病的原因

为什么宠物狗容易生病

因为人类对纯种宠物狗的偏执,导致宠物狗不能通过杂交改良基因,使其先天免疫力差易生病。而且大多数宠物狗原产地都在国外,还没有适应国内环境,容易因水土不服而生病。而且每天闷在楼上,所以难免。

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