Genetic Parameters Evaluation of Main Reproductive Traits for the New Yorkshire Dam Line with High Prolificacy  

大白猪高繁母本新品系主要繁殖性状的遗传参数估测(英文)

作　　者：宋忠旭[1] 孙华[1] 彭先文[1] 李良华[1] 董斌科[1] 梅书棋[1] 

机构地区：[1]湖北省农业科学院畜牧兽医研究所,湖北武汉430064

出　　处：《Agricultural Science & Technology》2013年第10期1465-1467,共3页农业科学与技术（英文版）

基　　金：Supported by National Science and Technology Support Plan during the Eleventh Five-year Plan(2006BAD01A08-02);Hubei Agricultural Innovation Program(2007-620-004-003);Special Fund for Modern Pig Production Technology Construction(NYCYTX-009)~~

摘　　要：The genetic parameters of main reproductive traits for the new Yorkshire line with high prolificacy were evaluated by multiple animal model DFREML The re- suits showed that the heritability evaluates of the total number of born （TNB）, alive number of born （ANB）, litter weigh at birth （LWB） and litter weight at age of 21 days were 0.10, 0.15, 0.09 and 0.14, respectively. The genetic correlations between these traits, for example, the correlations between TNB/ANB, NB/LWB, TNB/LW21, ANB/LWB, ANB/LW21 and LWB/LW21 were 0.87, 0.74, 0.43, 0.69, 0.59 and 0.51, respectively.应用多性状非求导约束最大似然法(MTDFREML)对大白猪高繁母本新品系繁殖性状的遗传参数进行了估计。结果表明,总产仔数(TNB)、活产仔数(ANB)、初生窝重(LWB)和21日龄窝重(LW21)的遗传力估计值分别为0.10、0.15、0.09和0.14各性状间(TNB/ANB、TNB/LWB、TNB/LW21、ANB/LWB、ANB/LW21、WB/LW21)的遗传相关分别为0.87、0.74、0.43、0.69、0.59和0.51。

关 键 词：New Yorkshire dam line with high prolificacy DFREML Variance com- ponent Genetic parameter 

分 类 号：S828[农业科学—畜牧学]