利用GnRH、PGF_(2α)和PRID进行黄牛程序化人工授精  

Program Artificial Insemination of GnRH、PGF_(2α) and PRID in Yellow Cattles

作　　者：李军锋[1] 徐恢仲[1] 左福元[2] 曾子建[2] 查辅祥 张家骅[1] 

机构地区：[1]西南农业大学动物养殖学院,重庆400716 [2]四川畜牧兽医学院,重庆402460 [3]黔江县畜牧事业管理局,重庆409000

出　　处：《中国兽医学报》2002年第4期402-404,共3页Chinese Journal of Veterinary Science

基　　金：重庆市科委资助项目 (98-5 187)

摘　　要：在一个处于自然散养状态下的本地黄牛群体中 ,比较了发情 /排卵同期化并定时人工授精组和仅同期发情处理后适时人工授精组黄牛的繁殖效果。 5 3头健康无病的本地黄牛随机分为 4组 ,试验 组 (Ov Synch法 ) ,注射 Gn RH-PGF2α- Gn RH;试验 组 ,注射 Gn RH- PGF2α- EB;试验 组 ,放置 PRID- PGF2α- EB;对照组 ,注射 PGF2α- PGF2α。其中 ,试验 、 、 组分别在处理结束后 16～ 2 0、2 4、2 4 h进行定时人工授精 ,对照组在鉴定发情后作适时输精。结果显示 :(1)各试验组同期发情率与对照组差异不显著 (P>0 .0 5 ) ,;(2 )试验 、 、 组所有授精牛均分别集中在处理结束后16～ 2 3、2 4～ 2 8、2 4～ 2 8h内完成人工授精 ,而对照组处理牛接受人工授精时间非常分散 ;(3)试验 、 、 组的第一情期受胎率分别为 6 0 .0 %、5 8.3%和 5 7.1% ,与对照组 (42 .9% )之间无显著差异 (P>0 .0 5 )。结果表明 ,试验组 3种程序处理黄牛均可以达到定时人工授精且不降低受胎率的目的。尤其是 Gn RH- PGF2α- EB程序 ,成本低、处理效果好 。The reproductive performance of yellow cattle after estrus ovulation synchronization and fixed time AI was compared with AI cattle after estrus synchronization in natural local yellow cattle.53 healthy yellow cattle were assigned randomly to four treatment groups in this experiment.Group Ⅰ(GnRH+PGF 2α +GnRH),Group Ⅱ(GnRH+PGF 2α +EB),Group Ⅲ(PRID+PGF 2α +EB),and the control group(PGF 2α +PGF 2α ).After 16 20?24?24 h, the fixed time AI was conducted in group Ⅰ,Ⅱ and Ⅲ.The results were as follow:(1)No significant difference was observed between the experiment groups and the control group for the rate of synchronized estrus( P >0 05).(2)The conception rate of group Ⅰ,Ⅱ and Ⅲ were respectively 60 0%?58 3% and 57 1%. No difference( P >0 05) in the conception rate was found between the three experimental treatments and the control treatments(42 9%).The result demonstrated that the fixed time AI can get good reproductive performance after the treatment of program of GnRH+PGF 2α +GnRH?GnRH+PGF 2α +EB and PRID+PGF 2α +EB. The program GnRH+PGF 2α +EB was the best and worth to widely apply for production for its low cost and pretty effect.

关 键 词：程序化 OVSYNCH PRID 同期发情 人工授精 黄牛 产业化 

分 类 号：S823.34[农业科学—畜牧学]