动物营养学报2016，Vol.28Issue(10)：3192-3198,7.DOI:10.3969/j.issn.1006-267x.2016.10.022
青稞秸秆对生长期藏绵羊体增重及免疫指标的影响
Effects of Highland Barley Straw on Body Weight Gain and Immune Indexes in Growing Tibetan Sheep
摘要
Abstract
Highland barley straw was used to substitute oat hay for the study on the effects on body weight gain and immune indexes in growing Tibetan sheep. Eighteen healthy 4-to 5-month old Valley Tibetan sheep were selected and randomly divided into 2 groups, which were highland barley group ( highland barley straw 300 g/d+concentrate 300 g/d) and oat group ( oat hay 300 g/d +concentrate 300 g/d) . Test period lasted for 4 weeks, the 1st week was pre-test period, the 2nd to 4th weeks were formal test period. After formal test peri-od, according to the principle of half-and-half of ewe and ram, six sheep per group were selected to slaughter and sample. The results showed as follows:body weight, daily gain, spleen weight and spleen index in Tibet-an sheep between highland barley group and oat group were not significantly different ( P>0.05); serum im-munoglobulin ( Ig) G, IgA, IgM and lysozyme contents acid, and phosphatase activity showed no significant difference between two groups ( P>0.05) , but lysozyme content in highland barley group had a trend to be im-proved compared with that in oat group ( P=0.083); interleukin ( IL)-2, IL-4, IL-6, IL-10 and interferon γ( IFN-γ) contents in serum, thymus and spleen in two groups were not significantly different ( P>0.05) . As a whole, compared to oat hay, feeding highland barley straw to Tibetan sheep can’ t reduce body weight gain and impair immune function, and it has the potential to improve the content of lysozyme as a non-specific im-mune factor in serum. Highland barley straw can be used as a source of roughage for Tibetan sheep.关键词
青稞秸秆/体增重/免疫指标/藏绵羊Key words
highland barley straw/body weight gain/immune index/Tibetan sheep分类
农业科技引用本文复制引用
周小玲,颜琼娴,童海鸥,周传社,汤少勋,韩雪峰,谭支良..青稞秸秆对生长期藏绵羊体增重及免疫指标的影响[J].动物营养学报,2016,28(10):3192-3198,7.基金项目
中国科学院科技服务网络计划( KFJ-EW-STS-071) （ KFJ-EW-STS-071）
