【作者】 彭忠利； 高彦华； 郭春华； 王鼎； 苗建军；

【Author】 Zhongli Peng;Chunhua Guo;Yanhua Gao;Ding Wang;Jianjun Miao;College of Life Science and Technology, Southwest Minzu University;

【机构】 西南民族大学生命科学与技术学院；

【摘要】 本文综述了农牧区耦合牦牛全年均衡出栏"4218模式"研究与应用过程中的进展与成果,通过在牦牛日粮中添加酶制剂、适度提高能量水平等营养配方技术,牦牛短期育肥后能够显著提高日增重和产肉率,并能明显改善瘤胃发酵特性,促进能量和营养物质消化利用。"4218模式"是缩短牦牛出栏周期和增加经济效益的新型牦牛舍饲育肥模式,对保护生态环境、促进牧区脱贫致富和推动牦牛养殖业实现产业化具有重要的意义。更多还原

【Abstract】 This article reviewed the current advances in the researches and applications of "4218 model" of house-feeding yaks. By supplementing exogenous fibrolytic enzymes and moderately enhancing energy concentration in the diets, yaks received greater growth and carcass performance, as well as improved ruminal fermentation characteristics and nutrient utilization. "4218 model" is a noval fattening practice of house-feeding yaks, which could shorten the yak production cycle and increase the economic returns for yak farmers. The practices of "4218 model" would be very important for protecting ecological environment, increasing incomes of yak farmers and promoting the industrialization of yak production.更多还原