摘要
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、LWB/LW21)的遗传相关分别为0.87、0.74、0.43、0.69、0.59和0.51。
The genetic parameters of main reproductive traits for the new Yorkshire line with high prolificacy were evaluated by MTDFREML.The results 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 was 0.10,0.15,0.09 and 0.14,respectively.The genetic correlations between each trait such as TNB/ANB,TNB/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.
出处
《湖北农业科学》
北大核心
2012年第23期5409-5411,共3页
Hubei Agricultural Sciences
基金
"十一五"国家科技支撑计划项目(2006BAD01A08-02)
湖北省农业科技创新中心项目(2007-620-004-003)
现代生猪产业技术体系建设专项(NYCYTX-009)
