摘要
利用聚丙烯酰胺凝胶电泳对 2 6 4头云南黑白花奶牛乳样的四个蛋白位点的多态现象进行了研究。同时 ,利用国外乳用牛的研究结果与云贵地区的黑白花奶牛的遗传距离进行估算 ,并运用类平均聚类法进行聚类分析。结果表明 ,云南黑白花奶牛与荷斯坦 -弗里斯牛、弗里斯牛和荷斯坦牛的亲缘关系最近 ;而与娟姗牛、爱尔夏牛亲缘关系最远。
Yunnan black-white cow were used to investigate the polymorphism of four milk proteins by means of polyacrylamide gel electrophoresis. Their gene frequencies of polymorphic locis were calculated and analysed. Meanwhile, genetic distances among black-white cow and Milking cow were calculated by citing the foreign scientists' research results. Cluster analysis was conducted to use unweighted pair group arithmetic mean. The results showed that the relations between Yunnan black-white cow and Holstein-Friesian?Friesian?Holstein breeds are the most intimate, the relations between Yunnan black-white cow and Jersey?Ayrshire breeds are farther.
出处
《草食家畜》
2003年第1期55-57,60,共4页
Grass-Feeding Livestock
