译 名：
Polymorphism of Milk Proteins in Qinghai Native Cattle
作 者：
ZHANA Cai-jun, WANG Yong,LU Fu-shan,LONG Cheng-Lin (Faculty of Agriculture and Animal Sciences,Qinghai University ,Xining 810003,China)
关键词：
Qinghai native cattle;α-Lactal bumin;β-Lactoglobulin;α_(s1) -Casein;β-Casein;α_(s1)-CN E allele
摘 要：
Qinghai native cattle were used to invesgate the polymorphism of four milk proteins by means of polyacrylamide gel electrophoresis.The results were as follows:(1)There was the polymorphism on the loci of four milk proteins including α-lactalbumin,β-lactoglobulin,α s1 -casein and β-casein.(2)The average gene heterozygosity,the average gene homozygosity index and the average number of effective alleles were 0.2008,0.6282 and 1.2869,resp.(3)A new α s1 -CN E allele was discovered in the Qinghai native cattle examined.
