不同外源性激素对乏情母牦牛处理效果的研究  

Effect of Different Exogenous Hormones on Low Estrus of Female Yak

作　　者：陈世彪[1] 许生成[1] 张君[1] 

机构地区：[1]青海大学,西宁810016

出　　处：《青海畜牧兽医杂志》2014年第2期11-12,共2页Chinese Qinghai Journal of Animal and Veterinary Sciences

摘　　要：选择420头体况维持在2.0 ～3.0的当年产犊乏情母牦牛分3个组,用3种不同的方法进行诱导发情处理.第1组：注射GnRH-PG-GnRH;第2组：注射GnRH-PG-E2;第3组：注射PG-GnRH.结果表明：第1组、第2组和第3组经不同的处理后,发情率分别为70.00％ （98/140）、54.29％ （76/140）、52.14％（73/140）,受胎率分别为48.57％ （68/140）、34.28％（48/140）、21.43％ （30/140）.第1组发情率分别显著高于其它2个组（P＜0.05）;采用GnRH-PG-GnRH处理方案,通过三年扩大试验,发现牦牛平均发情率在66.67％（72/108）以上,受胎率在44.44％（48/108）以上.420 female yaks with low estrus, producing calf in the same year , and maintaining body condition at 2.0 ~ 3.0 were divided into 3 group. 3 kinds of ways were adopted to induce estrus. Injections of GnRH - PG - GnRH for group 1 ; Injections of GnRH - PG - E2 for group 2; Injections of PG - GnRH for group3. The results showed that the estrus rate and conception rate of group 1, 2 and 3 group after different treatment were 70.00% （98/140）, 54.29% （76/140）, 52. 14% （73/140）, and 48.75% （68/140）, 34.28% （48/140）, 21.43% （30/140） respectively. The estrus rate of group 1 were significantly higher than other two groups （p 〈 0.05） ; The GnRH - PG GnRH treatment scheme, through three years promotion experiment, it found the average estrus rate and conception rate were above 66.67% （72/108）, and above 44.44% （48/108） respectively.

关 键 词：乏情牦牛 激素组合 同期发情 

分 类 号：S828[农业科学—畜牧学]