Abstract:

Double muscle gene is caused by the mutation of the muscle growth inhibition gene, which located on the second chromosomes. It is a negative regulatory factor of the skeletal muscle growth, a member of the TGF-β supergene family. It is incomplete dominant inheritance. The paper describes the hereditary feature of the double muscle of bovione,gene mapping and the characteristics of the bovione’s physiology, breeding cattle muscle and carcass. Discusses the double muscle gene used and applied in the prospect of the beef production of our country.