Meantime, the concrete measures were elicited for bull selection, making and preservation of frozen semen, mating methods and frozen embryo pool establishment etc.
同时，从种牛选择，冻精制作与保存、选配方法、建立冷冻胚胎库等方面提出了具体技术措施。
youdao
应用推荐
模块上移
模块下移
不移动