按同质原则将27只无角陶塞特(♂)与藏羊(♀)的杂交一代公羔(3.5～4月龄)rn分为3个试验组，每组9只。采用单因子设计，研究1、0.9、0.8倍NRC营养水平全饲粮颗粒料肥育羔羊的效果。结果表明，正试期3个处理组日增重依组次为225.6、238.9、206.2g。第2、3组间日增重差异显著(P＜0.05)，1组日采食量极显著低于2、3组(P＜0.01)，1、2组料肉比极显著优于3组(P＜0.01)。1倍NRC水平配方的价格太高，0.9和0.8倍NRC营养水平配方适于本地羔羊育肥生产，其中以0.9倍NRC营养水平配方最好。%Twenty seven crossed lambs(3.5～4months) of Poll Dorest (♂)×Tibetan rnsheep(♀) were divided into three groups. Single factor design was used in the study with different rnnutritional level. The results showed that daily gain were 225.6,238.9,206.2g in order of group,rnand efficiency of gain of the second group lambs was significant higher (P＜0.05) than that of the rnthird group lambs. It was also proved that daily intake of the first group lambs was very rnsignificant lower than that of others groups (P＜0.01),and efficiency of feed utilization of the third rngroup lambs was very significant poorer than that of others groups (P＜0.01) . In a word, people rnwill get much benefit if complete diet pellet with 0.9 NRC nutritional level is used to fatten local rnlambs.
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