固原黄牛毛色及外形特征的研究

Studies on coat colour and exterior characters of Guyuan Yellow cattle

以系统随机整群抽样法调查分析了固原黄牛 3个系统共 1 86头毛色及外部形态特征的表型和基因频率分布。结果表明 ,固原黄牛毛色以红、黄色为主 ,头型、体型长窄为主 ,小肩峰 (0 .7946) ,额头无毛。为研究固原黄牛类源系统提供重要依据。

The distribution of phenotype and gene frequencies for coatcolor and ex- terior characters of 1 86Guyuan yellow cattle from 3systems were analysed by systemat- ic random whole population sampling method. The result showed that coat color of Guyuan yellow cattle dominanted by red and yellow,head and body dominated by long and narrow type with small shoulder top and barren forehead,which provide an impor- tant references for studying origin of Guyuan yellow cattle.