Coat Colour Inheritance of BMY and Brahman Cattle

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.