饲料研究2025，Vol.48Issue(1)：21-26,6.DOI:10.13557/j.cnki.issn1002-2813.2025.01.004
不同水平复合益生菌制剂对育肥湖羊生长性能、免疫功能、抗氧化功能和瘤胃菌群的影响
Effects of different levels of composite probiotic preparations on growth performance,immune function,antioxidant function,and rumen flora of fattening Hu sheep
摘要
Abstract
The experiment aimed to investigate the effects of different levels of compound probiotic preparations on the growth performance,immune function,antioxidant function,and rumen flora of fattening Hu sheep.Sixty male Hu lambs,aged two months and with similar body weights(19.65±1.24)kg,were randomly divided into four groups,with three replicates per group and five fattening lake sheep per replicate.The control group was fed a basal diet,while the low-dose,medium-dose,and high-dose groups were supplemented with 1,2,and 3 g/kg of compound probiotics,respectively.The pre-test period was 10 days and the formal test period was 60 days.The results showed that the final body weight(FBW)and average daily gain(ADG)of the experimental group were significantly higher than those of the control group(P＜0.05),and the feed-to-gain ratio(F/G)was significantly lower than that of the control group(P＜0.05).The contents of helper T cells(CD4)and cytotoxic T cell(CD8)in each experimental group were significantly higher than those in the control group(P＜0.05).The immunoglobulin M(IgM)content,superoxide dismutase(SOD)activity,and total antioxidant capacity(T-AOC)in the serum of the medium-dose group were higher than those in other groups(P＜0.05).The relative abundance of Christensenella in the medium dose group was significantly increased(P＜0.05),and the relative abundance of Prevotella in the experimental groups was significantly decreased(P＜0.05).The study indicates that adding two g/kg of compound probiotic preparations to the basal diet can improve the growth performance,immune capacity,and antioxidant performance of fattening Hu sheep,and regulate the balance of rumen microecology.关键词
复合益生菌制剂/育肥湖羊/生长性能/免疫功能/抗氧化功能/瘤胃菌群结构Key words
compound probiotic preparations/fattening Hu sheep/growth performance/immune function/antioxidant function/rumen flora structure分类
畜牧业引用本文复制引用
朱逸枭,张云卓,冉扬,刘光阳,胡茂..不同水平复合益生菌制剂对育肥湖羊生长性能、免疫功能、抗氧化功能和瘤胃菌群的影响[J].饲料研究,2025,48(1):21-26,6.基金项目
南疆重点产业创新发展支撑计划(项目编号:2021DB014) （项目编号:2021DB014）
