摘要
按同质原则将24只早期断奶杂交羔羊(陶♂×滩寒♀)分为3组,采用单因子随机分组设计,研究3个营养水平(Ⅰ—0.9×NRC、Ⅱ—1.0×NRC、Ⅲ—1.1×NRC)条件下,高比例精料饲粮对1月龄早期断奶乳羔的肥育效果.试验表明:3个处理组日增重依组次为217.05、267.60、275.33 g,Ⅱ、Ⅲ组的日增重显著高于Ⅰ组(P<0.05),Ⅱ与Ⅲ组之间差异不显著;各组间干物质采食量和料肉比差异不显著;各组羔羊只育肥收入都在25元以上,其中以Ⅱ、Ⅲ组较好,为Ⅰ组的135.46%和130.83%.综合考虑乳羔的生产性能及经济效益,采用1.0×NRC营养水平较为适宜.
Twenty-four crossbred Iambs （Poll Dorest ♂× Tan× Small Tail Han♀,50 days age） were divided into three groups and tritional levels （ Ⅰ -0.9NRC, single factor design was used to study effects of fattening diets with three nutritional levels（Ⅰ-Ⅱ -1.0NRC and Ⅲ-1.1NRC）. The results indicated that there was significant difference （P〈0.05） on final weight of lambs between Ⅰ and Ⅲ ,and no significant difference was found between Ⅱ and Ⅲ ,at the same time a tendency showed that the weight of Ⅱ was higher than that of Ⅰ （P=0.10）. ADG of lambs for II （267.60 g） ,Ⅲ （275.33 g） was significantly higher than that for Ⅰ（217.05 kg）. There was no significant difference on ADG of lambs between Ii and Ⅲ. No significant difference on DM intake and FCR was found among three groups （P〈0.05）. It can be showed there was higher economic effect on Ⅱ and Ⅲ than Ⅰ. Income of Ⅱ and Ⅲ were 135.46 % and 130.83 % as high as income of I. In a word,people will get much benefit if complete diet pellet with 1.0 × NRC level is used to fatten early weaning （30 days age） crossbred lambs.
出处
《甘肃农业大学学报》
CAS
CSCD
2006年第5期18-21,共4页
Journal of Gansu Agricultural University
基金
甘肃省教育厅项目(编号:0080739
01cx-05)
关键词
乳羔
育肥
营养水平
全饲粮颗粒料
生产性能
经济效益
lamb
fattening
nutritional level
complete pellet diet
productivity
economic benefit
