荒漠绿洲区滩羊畜牧业生态经济特征

为了解滩羊不同饲养方式的生态转化效率及经济效益，在景泰草地农业试验站及景泰县米家山南麓金坪村对５种饲养方式进行了试验。结果表明，从全放牧到半站半放牧、站养、全舍饲，滩羊的年度增重、羔羊繁殖成活率、羔羊断奶重依次增加；产毛量则依次下降，产出投入比依次增大，直接经济效益依次降低。短期肥育的生态转化效率、经济效益均高，是商品羊上市的最佳饲养方式。

ECOLOGICAL ECONMIC CHARACTERISTIC OF TAN-SHEEP PASTORAL INDUSTRY IN DESERT OASIS

To clear the eco-conversion efficiency and economic benefit about different breeding forms of tan-sheep, the five breeding forms were performed in Jinping village situated in the south of Mijia Mounty,Jing Tai county.The results showed that from full graze to half graze, shed- breeding and full shed-breed-ing the year live-weight gain of tan sheep, the survival rate and post weaning weight of lamb in order in-crease, the yield of wool in order decreased, the rate of output and input rised, the direct economic benefitlowered. The eco-conversion efficiency, economic benefit of short time fattening are largely high. It is thebest breeding form of the commercial sheep marketing.