According to the results of MTDFREML: The proportions of genetic variance, uncorrelated random effect variance (permanent environmental effect variance) about BWT, WWT, WSL are low, but the proportions of residual variance are high.

• MTDFREML结果表明：BWT、WWT和WSL的遗传方差、不相关的随机效应方差(永久环境效应方差)所占的比例较小，残差方差所占的比例较高。