运用数学优选法筛选藏羊最佳畜群结构  

Using Optimal Selection Method to Screen economic benefit Optimum Flock Structure of Tibetan Sheep

作　　者：梁廷堂 薛艰省 

机构地区：[1]果洛州畜牧兽医工作站,814000

出　　处：《青海畜牧兽医杂志》2000年第1期29-31,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

摘　　要：运用数学优选法 ,根据果洛州藏羊生产性能和组群实际情况 ,通过屠宰羯羊羔和 2岁羯羊筛选藏羊的最佳畜群结构。以当前生产力为基础 ,在不增加存栏的情况下 ,提高出栏率。通过对不同年龄羊群结构的经济效益分析 ,找出羊群中最佳的母畜比例为 6 6 %。建议果洛州藏羊畜群结构应以 6 6 %为主进行调整。这样既有利于畜草矛盾的逐步解决 ,可使草地得到合理利用 。Based on the curreent situation of the performance and flock structure of Tibetan sheep in Guoluo Prefecture,the optimum seeking method was used to screen the optimum flock structure by slaughtering the castrated lamb or 2 years old castrated sheep Under the condition that the current productivity and amount of sheep on hand not changed and the marketing rate of sheep was increased,analyzing the ecomomic benefit of flock structure of different age in the flock and the economics of the current found out the optimum female percentage that was 66% in the flock.It is suggested that the female percentage of Tibetan sheep in the flock in the prefecture should be adjusted to 66%.Under this structure the contradictory problem of livestock number and feed availability could be resolved step by step,the grassland could be used rationally,and econmic incoming could be considerably increased.

关 键 词：藏羊 畜群结构 数学优选法 生产力 经济效益 

分 类 号：S811.5[农业科学—畜牧学] S11[农业科学—畜牧兽医]