短花针茅草原五个载畜率水平绵羊活重变化规律

摘要

The sheep liveweight under 5 stocking rates was measured in Stipa brev iflora desert steppe on Inner Mongolia Plateau in Damao Banner, Baotou in order to decide the proper stocking rate for sheep production. The results showed that the highest sheep liveweight occurred in October, moderate stocking rates benef ited sheep production, liveweight gain per hectare increased and liveweight gain per head decreased as stocking rate increased, and the cross point of curves for changes of liveweight gains per hectare and per head is the proper stocking rate for sheep production that is 2.2 sheep/hm2/half year in Stipa brev iflora desert steppe.%在内蒙古高原短花针茅荒漠草原采用5个不同载畜率水平进行的绵羊放牧试验结果表明,绵羊活重均以10月份为最大,中等载畜率有利于绵羊生产;随着载畜率增大,单位面积的绵羊增重逐渐增加,单个绵羊的增重逐渐减少,两者的交点为绵羊生产的适宜载畜率,即每半年 2.2只羊/hm2.