The relationships between PCR-RFLP loci,PCR-SSCP loci and milk traitwere analyzed in two populations by GLM.

• 应用 SAS 软件、用最小二乘法拟合一般线性模型(GLM)在山东群体和北京群体中对所发现的多态位点各基因型间产奶性状的差异进行显著性检验。