With PMSG, HCG, FSH and LH respectively 40 does (4treatment groups)were treated to superovulate. Among 21, 5 eggs a doe ovulated overagely 11. 5 embryos were collected.

• 用FSH、LH、PMSG、HCG对40只山羊进行超数排卵处理，平均每只排卵21.；5枚，回收11