Genetic and phenotypic correlations of some body measurements with milk yield were estimated in 437 Nili Ravi buffaloes ......

用非求导约束最大似然法估计了大白猪部分性状的直接和母体遗传效应。总产仔数，活产仔数和初生重的直接效应遗传力分别为０．１５，０．２５和０．０９，母体效应......