母羊胎次与配种日期对内蒙古白绒山羊产羔数的影响  

Effects of Parity of Dam and Breeding Date on the Litter Size of Inner Mongolia White Cashmere Goats

作　　者：王彩霞[1] 刘少卿[2] 李金泉[1] 代盛超[1] 王志英[1] 张燕军[1] 王瑞军[1] 

机构地区：[1]内蒙古农业大学动物科学学院,呼和浩特010018 [2]内蒙古白绒山羊种羊场,鄂尔多斯017000

出　　处：《中国畜牧兽医》2015年第6期1512-1517,共6页China Animal Husbandry & Veterinary Medicine

基　　金：国家公益性行业(农业)科研专项(20130305903;201003019);国家绒毛用羊现代农业产业技术体系(CARS-40-05);内蒙古科技计划项目(20080705;20100712;20110715;20120229)

摘　　要：文章通过分析母羊胎次与配种日期对内蒙古白绒山羊产羔数的影响,确定内蒙古白绒山羊的最佳配种时间,以提高其繁殖效率。试验数据来自于内蒙古白绒山羊种羊场1998-2013年的繁殖记录。利用SAS 9.0软件的GLM程序确定母羊胎次、配种日期对产羔数的显著性影响。结果表明,母羊胎次和配种日期对产羔数影响极显著(P<0.01)。母羊第1胎产羔数最低(1.37),随着母羊胎次的增加,产羔数显著增加,第6胎之后产羔数开始下降;配种周期为9月29日-10月16日的产羔数最高(1.76),且母羊发情月份和发情高峰主要集中在10月份,所以在生产中此阶段可以作为内蒙古白绒山羊的配种期。The article through the analysis and research to the effects of parity of dam and breed- ing date on the litter size of Inner Mongolia White cashmere goats, determine the optimal mating time of Inner Mongolia White cashmere goats, in order to improve the efficiency of reproductive. Data used were 1998 to 2013 reproductive performance records collected from the Arbas stock farm in Inner Mongolia,China. The GLM procedure of SAS 9.0 software was used to determine the significant effect of the parity of dam and breeding date, the results showed that the parity of dam and breeding date had significant effect on litter size （P^0.01）. Litter size was the lowest in 1st parity does （1.37）,the significantly increase in litter size with advance in parity and decline after six parity; Mating cycles for September 29th to October 16th had the highest litter size （1.76） ,and the estrous months and estrus peak time mainly concentrated in October,so this stage in production could be used as breeding period of Inner Mongolia White cashmere goats.

关 键 词：内蒙古白绒山羊 胎次 配种日期 产羔数 

分 类 号：S827.91[农业科学—畜牧学]