氯前列烯醇诱导牦牛同期发情效果的研究  

Study on Oestrous Synchronization in Yak Treated with Cloprostenol

作　　者：权凯[1] 张兆旺[1] 

机构地区：[1]甘肃农业大学动物科学技术学院,甘肃兰州730070

出　　处：《黄牛杂志》2004年第2期7-9,共3页Journal of Yellow Cattle Science

基　　金：国家民委重点科研项目资助

摘　　要：本研究用氯前列烯醇分别对青海大通牦牛(n=12)两次注射;对天祝白牦牛(n=17)和天祝黑牦牛(n=21)一次注射进行同期发情处理。三批处理结果为,一次注射后的发情率分别为:青海大通牦牛(9/12),75.0%;天祝白牦牛(10/17),58.8%;天祝黑牦牛(12/21),57.1%;平均一次性注射发情率为(31/50)62.0%。青海大通牦牛在第二次注射后的发情率为(12/12)100%,注射后发情的时间分别为:24h内发情的占8.0%、24～36h的占20.0%、36～48h的占30.0%、48～60h的占4.0%、60～72h的占0%。结果表明:氯前列烯醇对繁殖季节牦牛进行同期发情处理效果明显,二次注射处理后的发情率高于一次注射,处理后牦牛发情时间集中24～48h之间。Efficiency of Oestrous synchronization that treated with Cloprostenol was studied in Qinghai Da tong yak(n=12) in twice injection and Tianzhu White yak(n=17) and Tianzhu Black yak(n=21) in once injection. The results indicated that the oestrous rate is 75.0% in Datong yak, 58.8% in Tianzhu White yak, and 57.1% in Tianzhu Black yak after once injection. the average oestrous rate is 62.0%, in once injection and 100% in twice injection. The oestrous period was mainly between 24 and 48 hours after injection, the oestrus rate of this period is about 58.0% in total. The results showed that Oestrous synchronization brought about a significant effect in yak treated with Cloprostenol, twice injection had better results than once injection, The time of oestrous was mainly between 24 and 48 hours after injection.

关 键 词：氯前列烯醇 牦牛 同期发情 发情率 受配率 受胎率 

分 类 号：S823.34[农业科学—畜牧学] S823.85[农业科学—畜牧兽医]