day mare
1.10 heat street buck were treatment by testiculin (T), humun chorionic gonadotrophin (HCG), luteinizing hormone (LH) , and pregnant mare serum gonadotrophin (PMSG) ; and 10 buck were control group. Result of the test, 1 group, musculature injection T every day 5 mg, continous for one week, at the same time of treat 1,3,7 day injection HCG 20 IU, 5 day PMSG 20IU respectively;
