舍饲肉用绵羊同期发情试验  

Oestrus Experiment at the Same Period of Shed-Feed Sheep

作　　者：高光军 高政 宋锦鹏 李元 王秀艳 张明忠 刘美丽 

机构地区：[1]神木县畜牧兽医技术推广站,陕西神木719300 [2]神木县动物疫病预防控制中心,陕西神木719300 [3]神木县草原工作站,陕西神木719300 [4]神木县高家堡镇兽医站,陕西神木719301

出　　处：《家畜生态学报》2011年第1期42-44,共3页Journal of Domestic Animal Ecology

基　　金：陕西省重大科技创新项目专题之一(2009ZKC07-10)

摘　　要：选择神木县畜牧科技示范园种羊场1.5~3岁健康、中等以上膘情的四种繁殖母羊共600只,将其纯种萨福克羊和萨寒、陶细、德细二元杂交肉羊随机分为3个试验组和1个对照组。试验Ⅰ、Ⅱ、Ⅲ组分别用PG、阴道栓＋FSH和阴道栓＋PMSG处理,处理后96 h观察结果表明：Ⅰ组的四种羊同期发情率为：萨福克羊58.3%、德细52.9%、萨寒63.3%、陶细57.5%;Ⅱ组相应为：71.9%、78.1%、83.3%、82.1%;Ⅲ组相应为：85.7%、81.8%、87.1%、81.6%。试验Ⅱ、Ⅲ组处理的母羊发情率均显著高于试验Ⅰ组（P〈0.05）,Ⅱ组和Ⅲ组之间母羊发情率差异不显著（P〉0.05）,试验组综合效果均极显著优于对照组。四种羊以萨寒羊同期发情率最高。三种处理的母羊受胎率差异均不显著（P〉0.05）。In this experiment,four breeding ewes of 450,1.5 ~ 3 years old,health,medium above degree of fatness were chose at Breeding Sheep Farm,Animal Science and Technology Demonstration Garden in Shenmu county.They were randomly divided into three groups as their pure Suffolk sheep and their binary hybrid mutton Sahan,Taoxi,Dexi.Test Ⅰ,Ⅱ,Ⅲ groups were respectively used with PG,vaginal bolt ＋ FSH and vagina bolt ＋ PMSG treatment,the 96h observation results show that during the same period,in groupⅠ,the estrus rates of four breeds were respectively： Suffolk sheep was 58.3%,Dexi 52.9 %,Sahan 63.3%,Taoxi 57.5%;groupⅡ： Suffolk sheep 71.9%,Dexi 78.1%,Sahan 9,Taoxi 82.1%;groupⅢ： Suffolk sheep 85.7%,Dexi 81.8%,Sahan 87.1%,Taoxi 81.6%.Estrus rates of treated ewes in Test groupⅡ,Ⅲ were significantly higher than test groupⅠ（P0.05）,groupⅡ and group Ⅲ showed no significant difference（P0.05）.Sahan sheep showed its highest Estrous rate in these four breeds during the same period.Fertility rates of three treated ewes are not significantly different（P0.05）.

关 键 词：肉用绵羊 同期发情 阴道海绵栓 舍饲 

分 类 号：S811.5[农业科学—畜牧学]