吉林省肉牛遗传改良研究进展OA

Jilin Province,as a core area of the Northeast beef cattle belt and a major agricultural province,has built a diversified beef cattle breed structure and a leading seed production and supply system nationwide,relying on its abundant grain and straw resources,achieving remarkable results in the field of beef cattle genetic improvement.This article systematically reviews the development foundation,key technological progress,existing problems,and future plans of beef cattle genetic improvement in Jilin Province.Currently,Jilin Province has formed an industrial layout of"Eastern Yellow(Yanbian Yellow Cattle),Western Red(China Steppe Red cattle),and Central Improved(improced cattle,mainly Simmental),"The quality and efficiency of Jilin Province's distinctive local breeds have been improved,and a technical system combining conventional breeding and molecular breeding has been established.The application of technologies such as whole-genome selection and embryo engineering has significantly improved breeding efficiency;however,problems still exist,such as insufficient population selection and protection,poor operation of the breeding system,and an imperfect joint breeding mechanism.In the future,it is necessary to further improve the self-sufficiency rate of core breeds and promote high-quality development of the industry by improving the breeding system,strengthening technological innovation,optimizing policy support,and enhancing brand influence.