高寒牧区气候与营养因素对细毛羊体重影响的研究

在祁连山海拔3 000 m的高寒牧区进行了系统研究,初步探明了甘肃高山细毛羊在自然放牧条件下年内体重降升循环的临界期限。认为气温和放牧草地牧草数量和营养含量是影响细毛羊体重降升循环的主要因子,并对其与细毛羊体重之间的变化规律进行了研究。提出了高寒牧区细毛羊最佳的补饲期和出栏时期,为生产实践提供了理论依据。

Study on the Effects of Alpine-arctic Pastoral Zone Climate and Nutritional Factors on Fine Wool Sheep Body Weight

A systematic study on Qilian Mountain of 3000 meters in cold grazing region,critical period of Gansu alpine fine-wool sheep body weight change circle.In this paper,temperature and grassland herbage amount and nutrition content were considered to be the main factors affect fine-wool body weight change circle,meanwhile,body weight variation law was conducted.The best supplementary feeding period and market period were put forward and also preferred theory basis for production practice.