盐池滩羊主要经济性状的遗传力分析  

Heritability Analysis on Economic Traits of Yanchi Tan Sheep

作　　者：崔保国[1] 徐彦龙[2] 陶金忠[2] 赵金宇[1] 张守元[1] 钟振宇[1] 

机构地区：[1]宁夏盐池滩羊选育场,宁夏盐池751506 [2]宁夏大学农学院,宁夏银川750021

出　　处：《畜牧与饲料科学》2017年第8期61-63,共3页Animal Husbandry and Feed Science

基　　金：宁夏农业育种专项"滩羊品系选育"项目(2013NYYZ0402)

摘　　要：旨在评价宁夏盐池滩羊选育场近年来舍饲条件下的选育成果,分析滩羊主要经济性状遗传力。从369只羔羊中筛选110只二毛期[(35±5)日龄]羔羊,对其二毛性状进行遗传力计算分析。结果表明,该选育场滩羊的初生重、侧部毛长、侧部弯曲数、35日龄校正体重、35日龄校正侧部毛长、35日龄校正侧部弯曲数的遗传力分别是0.02、0.07、0.04、0.13、0.09和0.12,提示该选育场舍饲滩羊的主要经济性状均属于低遗传力性状。The aim of the present study was to evaluate the selective breeding achievements in Selective Breeding Farm for Yanchi Tan Sheep of Ningxia, and to assess the hereditary capacity of main economic traits of Yanchi Tan Sheep. A total of 110 lambs （35±5） days of age were selected from a herd of 369 lambs and their hereditary capacity of the main economic traits was investigated. The results showed that the heritability of birth weight, hair length in body side, number of curls in body side, corrected body weight at 35-day-old of age, corrected hair length in body side at 35-day-old of age, and corrected number of curls in body side at 35-day-old of age was 0.02, 0.07, 0.04, 0.13, 0.09 and 0.12, respectively. These data suggest that the selected six economic traits of the confined Tan Sheep in this breeding farm belong to low heritability traits.

关 键 词：遗传力 父系半同胞法 F检验 遗传育种 

分 类 号：S826.932[农业科学—畜牧学]