供受体母牛选择好后要用激素对其进行同期�情处理的原因是 A.防止受体牛不愿意接受胚胎 B.只有受体与供体的生理状态相同被移植的胚胎 Template




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tomski供受体母牛选择好后要用激素对其进行同期�情处理的原因是 a.防止受体牛不愿意接受胚胎 b.只有受体与供体的生理状态相同被移植的胚胎 coloring