The polymorphism of the serum transferrin was investigated in the blood samples from 146 Tibetan sheep rearing in the Tianjun County,Qinghai Province by means of a polyacrylamide gel electrophoresis.

• 采用聚丙烯酰胺凝胶垂直平板电泳法对青海省天峻县 14 6只藏羊的血清运铁蛋白进行了分型。