内蒙古白绒山羊产羔数遗传评估的研究

doi:10.16431/j.cnki.1671-7236.2015.01.028

›› 2015, Vol. 42 ›› Issue (1): 179-184.doi: 10.16431/j.cnki.1671-7236.2015.01.028

内蒙古白绒山羊产羔数遗传评估的研究

王彩霞¹, 李金泉², 代盛超¹, 王志英¹, 周娟娟¹, 魏永龙¹, 孟瑞强¹, 张文广¹, 张燕军¹, 苏蕊¹, 刘志红¹, 王瑞军¹

1. 内蒙古农业大学动物科学学院, 呼和浩特 010018;
2. 内蒙古农业大学动物遗传育种重点实验室, 呼和浩特 010018

收稿日期:2014-05-29 出版日期:2015-01-20 发布日期:2015-02-06
通讯作者: 王瑞军 E-mail:nmgwrj@126.com
作者简介:王彩霞(1989-), 女, 内蒙古呼和浩特人, 硕士生, 研究方向:动物数量遗传育种, E-mail:nmgndwcx@126.com
基金资助:
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)

Study on Genetic Evaluation of Litter Size in Inner Mongolia White Cashmere Goats

WANG Cai-xia¹, LI Jin-quan², DAI Sheng-chao¹, WANG Zhi-ying¹, ZHOU Juan-juan¹, WEI Yong-long¹, MENG Rui-qiang¹, ZHANG Wen-guang¹, ZHANG Yan-jun¹, SU Rui¹, LIU Zhi-hong¹, WANG Rui-jun¹

1. College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China;
2. Key Laboratory of Animal Genetics, Breeding and Reproduction, Inner Mongolia Agricultural University, Hohhot 010018, China

Received:2014-05-29 Online:2015-01-20 Published:2015-02-06

摘要/Abstract

摘要： 本研究旨在对内蒙古白绒山羊产羔数进行遗传评估,进一步提高其繁殖性能.试验数据来源于内蒙古白绒山羊种羊场1998-2013年的繁殖性能记录,首先,利用SAS软件的GLM程序确定影响产羔数的固定效应;其次,应用重复力动物模型的约束最大似然法(REML)估计产羔数的遗传力,该模型中考虑的随机效应包括个体加性效应和母体永久环境效应.结果表明,母羊年龄和产羔年份对产羔数影响极显著(P< 0.01),群对产羔数影响显著(P< 0.05),其他因素均不显著(P >0.05).产羔数的遗传力为0.13,属于中等偏低遗传.表明根据表型直接选择,产羔数的遗传进展可能会慢一些.

关键词: 内蒙古白绒山羊; 产羔数; 遗传评估

Abstract: The objective of this study was to carry out genetic evaluation of litter size in Inner Mongolia White Cashmere goat, and further to improve its performance of reproductive.Data used were 1998 to 2013 reproductive performance records collected from the Arbas stock farm in Inner Mongolia, China.Genera Linear Model of SAS was exploited to determine the fixed effects that affect litter size.Meanwhile, heritability of litter size was estimated by using the restricted maximum likelihood (REML) method in a repeatability animal model where the addictive effect of individual and the permanent environmental effect of dam were considered as random effects.The results showed that age of dam and year of lambing had significant (P< 0.01) effect on litter size as well as herd (P< 0.05), other factors had no significant effects on litter size (P >0.05).A low to moderate heritability of 0.13, indicated that based on phenotypic selection directly, litter size genetic progress might be a little bit slow.

Key words: Inner Mongolia White Cashmere goats; litter size; genetic evaluation

中图分类号:

S813.1

王彩霞, 李金泉, 代盛超, 王志英, 周娟娟, 魏永龙, 孟瑞强, 张文广, 张燕军, 苏蕊, 刘志红, 王瑞军. 内蒙古白绒山羊产羔数遗传评估的研究[J]. , 2015, 42(1): 179-184.

WANG Cai-xia, LI Jin-quan, DAI Sheng-chao, WANG Zhi-ying, ZHOU Juan-juan, WEI Yong-long, MENG Rui-qiang, ZHANG Wen-guang, ZHANG Yan-jun, SU Rui, LIU Zhi-hong, WANG Rui-jun. Study on Genetic Evaluation of Litter Size in Inner Mongolia White Cashmere Goats[J]. , 2015, 42(1): 179-184.

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内蒙古白绒山羊产羔数遗传评估的研究

Study on Genetic Evaluation of Litter Size in Inner Mongolia White Cashmere Goats

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