关键词: 非传统养殖区, 肉牛, 品种改良, 轮回杂交

Abstract: Under the background of rapid development of beef cattle industry in China, the non-traditional beef cattle farming areas in northern Inner Mongolia have also begun to adjust their industrial focus to the beef cattle farming industry. The characteristics of ecological environment, beef cattle varieties, feeding management, industrial development and beef cattle trading in non-traditional beef cattle farming areas in northern Inner Mongolia were analyzed. On this basis, the variety improvement plan of beef cattle in non-traditional beef cattle farming areas was proposed according to the local conditions. The implementation of this program was composed of two phases. The first stage was to improve the offspring （breedable cows） of the local yellow cattle by crossbreeding using red Angus cattle as the male parent. The second stage was the rotational crossing using red Angus cattle and another specialized beef cattle variety as the main male parent to establish a breeding technology system for production of high-quality beef cattle. The program established in this study may help to provide technical guidance for the variety improvement of the yellow cattle and the development of the characteristic economy for non-traditional beef cattle farming areas in northern Inner Mongolia.

Key words: non-traditional farming area beef cattle variety improvement rotational crossing