羔羊精料补充料对祁连山东段高寒牧区不同羔羊品种短期育肥效果的研究

Studyon benefit of lamb short-tern fatteningof different breeds in alpine pastoral region in eastern Qilian Mountains

以天祝藏羊和甘肃高山细毛羊为试验对象,探讨高寒牧区羔羊的最优育肥模式。采用全舍饲方式进行羔羊短期育肥试验,观测其育肥期总增重、平均日增重,并分析育肥经济效益。结果表明:试验组藏羊与细毛羊的日增重都显著高于对照(P<0.05);细毛羊增重显著高于藏羊(P<0.05)。藏羊在饲喂量为0.25kg/d时,增重效果最优,经济收益达到38.7元/只;细毛羊在饲喂量为0.3kg/d时,增重效果最佳,经济收益达到180.6元/只。说明以甘肃高山细毛羊为育肥品种,以0.3kg/d的饲喂量是高寒牧区最优的育肥模式。

The lambs of Tibetan sheep （TS）and Gansu alpine fine wool sheep （AFWS）were selected to study the short-tern fattening pattern in alpine pastoral region in eastern Qilian Mountains .The bodyweight＆amp;nbsp;gain,daily bodyweight gain and cost were recorded.The results showed that there was significant different in the daily bodyweight gain between breeds （P ＆lt;0.05）.The daily bodyweight gain of TS and AFWS were higher than the control.The daily bodyweight gain of AFWS were significant higher than TS （P ＆lt;0.05 ）.The daily body weight gain and economical benefit of TS were 0.25 kg/day and 38.7 RMB Yuan/lamb,which were the best among treatments.And they were 0.3 kg/day and 180.6 RMB Yuan/lamb for AFWS,which were the best among 3 treatments.It could be concluded that AFWS was the optimal breed for short-tern fattening and the op-timum supplement amount was 0.3 kg/day.