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近交对内蒙古白绒山羊体重和产绒量的影响
引用本文:王瑞军,李金泉,梁永厚,张永斌,张文广.近交对内蒙古白绒山羊体重和产绒量的影响[J].中国草食动物,2007,27(3):25-26.
作者姓名:王瑞军  李金泉  梁永厚  张永斌  张文广
作者单位:1. 内蒙古农业大学动物科学与医学学院,呼和浩特,010018
2. 内蒙古农业大学动物科学与医学学院,呼和浩特,010018;内蒙古河套大学动物科学系
3. 内蒙古白绒山羊种羊场
基金项目:内蒙古自然科学基金;自治区重点实验室基金
摘    要:内蒙古白绒山羊主要是通过本品种选育进行繁育。随着BLUP方法在内蒙古白绒山羊选育上的应用,很大程度上造成了近交的上升。通过对内蒙古白绒山羊近交程度随世代的变化情况、以及近交对生长性状和产绒性状的影响的详细分析,发现随着近交系数的增加,出生重、断奶重、周岁重及产绒量都趋近于正态分布。当近交系数在0.015625~0.03125区间内,各体重值及产绒量均达到最高值。

关 键 词:近交  内蒙古白绒山羊  选育
文章编号:1007-9726(2007)03-0025-02
收稿时间:2006-12-21
修稿时间:2006-12-21

Influence of inbreeding to Weight and Cashmere yield of Inner Mongolia Cashmere
Wang Rui - jun ,Li Jin -quan ,Liang Yong - hou ,et al.Influence of inbreeding to Weight and Cashmere yield of Inner Mongolia Cashmere[J].China Herbivores,2007,27(3):25-26.
Authors:Wang Rui - jun  Li Jin -quan  Liang Yong - hou  
Institution:1. College of Animal Science and Medicine Inner Mongolia Agricultural University,010018
Abstract:Inner Mongolia cashmere Goats were bred by selection and inbreeding, but the application of BLUP in the selection led to the rising of inbreeding. According to the intimate analysis of the variation of inbreeding degree with generations and the influence of inbreeding to growth traits and cashmere yield traits, we can find that the birth weight(BW), weaning litter weight(WLWT) ,one year old weight(OYW) and cashmere yield(CY) all tend to normal distribution. When the coefficient of inbreeding belongs to the IV interval, the body weight value and the cashmere yield value both arrive to the interval maximum.
Keywords:inbreeding  Inner Mongolia cashmere Goats  selection and breeding
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