There were three isozyme (AMY1, AMY2 and AMY3) at the locus of amylase in Qinghai Merino, moreover, there were two genotypes of AMY2A and AMY2O at the AMY2. Monomorphism was tested at the locus of AMY in Gansu Alpine Merino.

• 而红细胞蛋白质-1（EP-1）和红细胞蛋白质-2（EP-2）基因座均呈显单态； 青海细毛羊的AMY基因座具有AMY1、AMY2、AMY3三种同工酶，其中AMY2呈多态，有AMY2A和AMY2O两种表现型，而甘肃高山细毛羊的AMY呈显单态。