BMY牛与婆罗门牛的毛色遗传  

Coat Colour Inheritance of BMY and Brahman Cattle

作　　者：亏开兴[1] 杨国荣[1] 朱芳贤[1] 袁希平[1] 文际坤[1] 

机构地区：[1]云南省肉牛和牧草研究中心,昆明小哨650212

出　　处：《黄牛杂志》2005年第4期19-21,共3页Journal of Yellow Cattle Science

基　　金：云南省"十五"科技攻关课题(2001NG36)。

摘　　要：为了解BMY牛和婆罗门牛的毛色遗传,本文分析了BMY牛和婆罗门牛的生产资料,以期在BMY牛新品系的经济性状达到稳定遗传的同时,也达到毛色的相对固定。BMY牛和婆罗门牛的红色、黑色和灰色所占比例分别为31.55%、16.04%、14.98%和44.03%、0、11.19%。BMY牛3个毛色个体的比例占群体的62.57%,这暗示着还存在很大的选择潜力。基于毛色的遗传基础,推测BMY牛红毛和灰毛两个品系将快于黑毛品系育成。另外,我们也认为尽管毛色标志着品种的基本特征,但也不能一味强调对毛色的选种选配,而应更注重于经济性状的选择与提高。To investigate the coat colour inheritance of BMY cattle and Brahman cattle, the available production records were used to analyze the relative fixation of coat color while the economic traits of BMY cattle inherited steadily. The proportion of red coat, black coat and gray coat of BMY cattle and Brahman cattle were 31.55%, 16.04%, 14. 98% and 44.03%, 0%, 11.19%, respectively. The proportion of the three coat colors was 62.57% in BMY cattle, which indicated the great selection potential. Based on the genetics of coat color, it was plausible that the red coat strain and the gray coat strain would successfully be bred earlier than the black coat strain. In addition, the coat color, as the external characteristic of breed, should not be over emphasized in the animal breeding practice in order to improve perfor- mance of important economic traits.

关 键 词：BMY牛 婆罗门牛 毛色遗传 

分 类 号：S823.2[农业科学—畜牧学]