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。
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)~~
