Factors on the pregnancy rate of bovine or ovine embryos transferred, superovulation of sheep and goats, and estrus synchronization of sheep to establish a highly efficient ET system.
And 705 sheep were selected for estrus synchronization followed by transfer of frozen-thawed embryos into 460 recipients.
在绵羊冷冻胚胎移植实验中,同期发情处理受体705只,移植受体460只。
Studies on estrus synchronization techniques in yaks were discussed and the research orientation and application perspective of this technique were put forward combining with the current problems.