PMSG对甘肃高山细毛羊同期发情和繁殖率的影响  

Effects of PMSG on estrus synchronization and reproductive rate of Gansu alpine fine-wool sheep

作　　者：李成[1] 张利平[1] 吴建平[1] 宫旭胤[2] 刘婷[1] 童建伟 

机构地区：[1]甘肃农业大学动物科学与技术学院,甘肃兰州730070 [2]甘肃省农科院畜草与绿色农业研究所,甘肃兰州730070 [3]甘肃省张掖市平山湖乡畜牧站,甘肃张掖734099

出　　处：《草业科学》2015年第11期1907-1912,共6页Pratacultural Science

基　　金：牧区极端气候条件牛羊应急专用饲料的开发与示范(20130306-5);绒毛用羊产业技术体系放牧生态岗位科学家(CARS-40-09B);ACIAR项目(AS2/2001/094);祁连山牧区草地畜牧业生产体系优化模式研究(1104WCGA191);甘肃牧区生态高效草原牧养技术模式研究与示范(201003061)

摘　　要：在甘肃省肃南县康乐乡对甘肃高山细毛羊应用阴道栓与孕马血清促性腺激素(PMSG)结合处理,结果表明,不同注射剂量和处理方式对母羊的同期发情和繁殖率均有影响,在埋栓后12.5 d注射550 IU PMSG并在放栓后14 d撤除阴道栓后的0-48 h发情率显著高于其他试验组(P<0.05);在埋栓后13 d注射600 IU PMSG同时撤除阴道栓的试验组繁殖率最高(P<0.05)。但综合繁殖率和经济效益考虑,在埋栓后间隔12.5 d注射550 IU PMSG并在放栓后14 d撤除阴道栓0-48 h的试验组效果最好,平均每只母羊净收入可达773.7元。In the present study,the rates of both estrus synchronization and reproduction of Gansu alpine-fine-wool ewes were investigated after CIDR（ Intravaginal Progesterone Insert） and PMSG（ Pregnant Mare Serum Gonadotropin） combination treatment in Kangle Town,Sunan County,Gansu Province. The ewes had the highest estrus rate（ P 〈0. 05） in 48 hours under treatment with 550 IU PMSG injection after 12. 5 days of using CIDRs and removing them in the 14 th day compared with other treatments. The ewes had the highest reproductive rate（ P〈 0. 05） under treatment with 600 IU PMSG injection after 13 days of using CIDRs and removing them at the same time. However,the former treatment was optimal if considering both reproductive rate and economic benefits which had 773. 7 CNY net income of per ewe.

关 键 词：孕马血清 甘肃高山细毛羊 繁殖率 发情率 

分 类 号：S826.3[农业科学—畜牧学]