农户养殖模式下小麦秸干物质、有机物及粗蛋白质在哈萨克育肥羊瘤胃有效降解率评定  

Evaluation of the effective degradation rates of dry matter,organic matter and crude protein from wheat straw in rumen of fattening Kazakh sheep under the mode of rural household breeding

作　　者：赵伟利[1] 刘晨黎[1] 孔平[1] 陈傲东[1] 何佳文[1] 刘保仓[1] 高巍[1] 

机构地区：[1]石河子大学动物科技学院,新疆石河子832003

出　　处：《黑龙江畜牧兽医》2014年第4期89-91,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家自然科学基金项目(31260557);新疆生产建设兵团博士资金专项(2013BB018)

摘　　要：为了能更加科学有效地利用小麦秸秆饲料,试验以装有永久性瘤胃瘘管、平均体重为28 kg的3只农户养殖育肥哈萨克羊作为试验动物,采用尼龙袋法对小麦秸干物质、有机物及粗蛋白质的瘤胃有效降解率进行了评定。结果表明:在瘤胃固相食糜平均外流速度为1.84%/h的条件下,干物质、有机物及粗蛋白质的有效降解率分别为42.56%、32.13%、53.31%,小麦秸在瘤胃内停留时间为31 h。To more scientifically and effectively utilize the wheat straw feed, three fattening Kazakh sheep raised by rural households with an av- erage weight of 28 kg, which were instaUed a permanent rumen fistula were used as experimental animals. The nylon bag technique was used to evaluate the effective ruminal degradation rates of dry matter（DM）, organic matter（OM）and crude protein（CP） from wheat straw. The results showed that under the condition that the rumen passage rate of solid digesta was 1.84%/h, the effective degradation rates of DM, OM, and CP were 42.56%, 32.13%, and 53.31%, respectively. The rumen retention time of wheat straw was 31 h.

关 键 词：农户养殖 小麦秸 哈萨克羊 瘤胃 尼龙袋法 有效降解率 育肥 

分 类 号：S826.84[农业科学—畜牧学]