The source and the cost of the embryo has become the important factor that practical turn of embryoengineering.
胚胎的来源和成本已成为制约胚胎工程实用化的重要因素。
2
Oocyte for embryoengineering recovered from ovaries of slaughtered animals have been found highly variable in their quality, so have to be selected strictly.
胚胎工程技术所需的卵母细胞主要来源于屠宰动物的卵巢，其质量差异较大，必须进行严格挑选。
3
In order to provide basic materials for reproduction physiology and embryoengineering, the Yellow Cattle's oviduct was observed by freezing section and he staining.