Genetic Analysis on the Lambing Effects of Ewe Inner Mongolia Cashmere Goat  

内蒙古白绒山羊母羊产羔效应的遗传分析(英文)

作　　者：周蕾[1] 李金泉[1] 张文广[1] 梅步俊[1] 张燕军[1] 张永斌[2] 

机构地区：[1]内蒙古农业大学动物科学与医学学院,内蒙古呼和浩特010018 [2]内蒙古白绒山羊种羊场,内蒙古鄂托克旗017000

出　　处：《Agricultural Science & Technology》2008年第6期118-120,共3页农业科学与技术（英文版）

基　　金：Supported by National High-tech Research and Development Program of China(2007AA10Z151)~~

摘　　要：[Objective] The aim of this study was to explore the genetic law of litter size of Inner Mongolia Cashmere Goat.[Method] A total of 22 721 litter records from 3 044 mothers were statistically analyzed.[Result] As shown by the least square variance analysis,the sex,parity and birth type had significant effect on lamb birth weight.As indicated by restricted maximum likelihood method,the parity,population and maternal effect influenced litter size significantly.The birth weight heritability of single lamb,twins and total was 0.16,0.40 and 0.17,respectively.[Conclusion] The study provided a certain basis for the establishment of Inner Mongolia Cashmere Goat line with superior reproductive performance.[Objective] The aim of this study was to explore the genetic law of litter size of Inner Mongolia Cashmere Goat.[Method] A total of 22 721 litter records from 3 044 mothers were statistically analyzed.[Result] As shown by the least square variance analysis,the sex,parity and birth type had significant effect on lamb birth weight.As indicated by restricted maximum likelihood method,the parity,population and maternal effect influenced litter size significantly.The birth weight heritability of single lamb,twins and total was 0.16,0.40 and 0.17,respectively.[Conclusion] The study provided a certain basis for the establishment of Inner Mongolia Cashmere Goat line with superior reproductive performance.

关 键 词：Inner Mongolia CASHMERE GOAT LITTER size Birth weight HERITABILITY 

分 类 号：S827[农业科学—畜牧学]