乏情季节应用孕酮微囊包被液态制剂对奶山羊同期发情人工授精效果对比分析  

Comparative analysis of artificial insemination effect of progesterone microencapsulated liquid preparation in estrus season of dairy goats

作　　者：董志岷[1] 王春 郭雅娟 贺佳唯 刘艳琴 朝格吉乐图 范佳乐 王贵[1] 杜金娥[1] DONG Zhimin;WANG Chun;GUO Yajuan;HE Jiawei;LIU Yanqin;CHAO Gejiletu;FAN Jiale;WANG Gui;DU Jin’e(Hetao College,Bayannaoer,Inner Mongolia 015000,China;Bayannaoer Animal Husbandry Service Center,Bayannaoer,Inner Mongolia 015000,China;Bayannur City Animal Disease Prevention and Control Center,Bayannaoer,Inner Mongolia 015000,China)

机构地区：[1]河套学院,内蒙古巴彦淖尔015000 [2]巴彦淖尔市畜牧业服务中心,内蒙古巴彦淖尔015000 [3]巴彦淖尔市动物疫病预防控制中心,内蒙古巴彦淖尔015000

出　　处：《中国饲料》2024年第4期13-16,共4页China Feed

基　　金：河套学院羊繁育技术创新集成中心(2330366);内蒙古自治区教育科学研究“十三五”规划课题(NGJGH2020391);科技兴蒙”行动重点专项巴彦淖尔国家农业高新技术产业示范区重点项目(NMKJXM202110)。

摘　　要：奶山羊发情具有一定的季节性,每年的4~7月份属于乏情季节,为了提高种山羊的利用率,扩大种群规模,实现全年均衡生产,必须突破乏情季节奶山羊繁殖率低的瓶颈。本试验将150只适繁奶山羊随机分为3组,每组50只,第1组以全混合日粮(TMR)为载体投放孕酮微囊包被液态制剂+PMSG+PG处理,第2组以阴道硅胶支架(CIDR)+PMSG+PG处理,第3组不做任何处理。结果表明,在相同饲养条件下,第1、2组同期发情率较高,差异不显著(P> 0.05),但显著高于第3组(P <0.05);但发情母羊人工授精后的妊娠率显示第1组和第3组显著高于第2组(P <0.05),说明在乏情季节对奶山羊应用孕酮微囊包被液态制剂可以有效减少生殖道投药的不利影响,可以有效提高种羊的利用率,为实现舍饲奶山羊快速扩繁提供技术支撑。The estrus of dairy goats has a certain seasonality,and from April to July each year belongs to the lackluster season.In order to improve the utilization rate of breeding goats,expand the population size and achieve balanced production throughout the year,the bottleneck of low reproductive rate of dairy goats in the lackluster season must be broken through.In this study,150 suitable breeding dairy goats were randomly divided into 3 groups with 50 goats in each group.The first group was treated with liquid preparation+PMSG+PG using TMR as the carrier,the second group was treated with CIDR+PMSG+PG,and the third group was treated without any treatment.The results showed that under the same feeding conditions,the estrus rate of groups 1 and 2 was better,and the difference was not significant(P>0.05),but was better than that of group 3,and the difference was significant(P<0.05).However,the pregnancy rate of estrus ewes after artificial insemination showed that the pregnancy rate of groups 1 and 3 was higher than that of group 2,and the difference was significant(P<0.05),indicating that the application of progesterone microencapsulated liquid preparation to dairy goats in the barren season can effectively reduce the adverse effects of reproductive tract administration,effectively improve the utilization rate of breeding sheep,and provide technical support for the rapid propagation of farmed dairy goats.

关 键 词：乏情季节 孕酮微囊包被液态制剂 CIDR 同期发情 

分 类 号：S826[农业科学—畜牧学]