中国饲料Issue(14)：47-51,5.DOI:10.15906/j.cnki.cn11-2975/s.20261409
日粮添加黄芪多糖对小尾寒羊生长性能、免疫机能及血清生化指标的影响
The effect of adding astragalus polysaccharides to the diet on the growth performance,immune function,and serum biochemical indicators of small tailed Han sheep
摘要
Abstract
This study aims to investigate the effects of adding different levels of Astragalus membranaceus polysaccharides(APS)to the basal diet on the growth performance,immunity,and serum biochemical indicators of small tailed Han sheep,in order to determine the appropriate amount of APS added in the breeding of small tailed Han sheep.Sixty male lambs with similar age(120±4d)and weight(25.0±1.5kg)were selected for the experiment and divided into four groups.Each group had three replicates,with five lambs in each replicate.The control group was fed with a basic diet,while the experimental group received 0.2％,0.4％,and 0.8％APS added to the basic diet,respectively.The pilot period was 7 days,and the experimental period was 60 days.The results showed that:(1)compared with the control group,the average daily feed intake of the 0.2％,0.4％,and 0.8％APS addition groups increased(P>0.05);The average daily weight gain of the 0.4％and 0.8％APS addition groups significantly increased(P<0.05),while the feed to weight ratio significantly decreased(P<0.05);There was no significant difference in the average daily weight gain and feed to gain ratio between the 0.2％,0.4％,and 0.8％APS addition groups(P>0.05).(2)Compared with the control group,the levels of IgM and IL-6 in the serum of the 0.2％,0.4％,and 0.8％APS addition groups increased(P>0.05),while the level of IL-1 β in the serum decreased(P>0.05);The levels of IgG,IgA,and IL-2 in the serum of the 0.4％and 0.8％APS addition groups were significantly increased(P<0.05),while the level of TNF-α in their serum was significantly reduced(P<0.05);There was no significant difference(P>0.05)in the levels of IgG,IgA,IL-2,and TNF-α in the serum of the 0.2％,0.4％,and 0.8％APS addition groups.(3)Compared with the control group,the serum ALB content in the 0.2％,0.4％,and 0.8％APS addition groups increased(P>0.05),while the Cr,TC,and ALT content decreased(P>0.05);The levels of TP and GLB in the serum of the 0.4％and 0.8％APS addition groups were significantly increased(P<0.05),while the levels of BUN,TG,and AST activity in the serum were significantly decreased(P<0.05);There was no significant difference(P>0.05)in the levels of TP,GLB,BUN,TG,and AST activity in the serum of the 0.2％,0.4％,and 0.8％APS addition groups.In summary,adding an appropriate amount of APS to the basic diet of Small Tail Han sheep can improve their growth performance and immunity,and improve their serum biochemical indicators.Adding 0.4％APS is suitable.关键词
黄芪多糖/小尾寒羊/生长性能/免疫力/血清生化Key words
astragalus polysaccharides/small tailed han sheep/growth performance/immunity/serum biochemistry分类
农业科技引用本文复制引用
王珍珊,孙鹏..日粮添加黄芪多糖对小尾寒羊生长性能、免疫机能及血清生化指标的影响[J].中国饲料,2026,(14):47-51,5.基金项目
2026年度承德市科技计划自筹经费项目(202601A045) （202601A045）
