中国饲料Issue(14)：52-56,5.DOI:10.15906/j.cnki.cn11-2975/s.20261410
黄芪多糖对肉兔生长性能、肠道屏障功能、肉品质及屠宰性能的影响
Effects of astragalus polysaccharides on growth performance,intestinal barrier function,meat quality and slaughter performance of meat rabbits
摘要
Abstract
The present study aimed to evaluate the impacts of adding different concentrations of astragalus polysaccharides(APS)to the diet on growth performance,intestinal barrier function,meat quality,and slaughter performance of meat rabbits.A total of 120 healthy weaned Ira meat rabbits at 35 days of age,having comparable body weights(786.5±23.4 g),were allocated randomly to 4 treatment groups.Each treatment consisted of 6 replicates,with 5 rabbits in each replicate.The control group(CON)received a basal diet,while the experimental groups received the same basal diet added with 250 mg/kg(APS1 group),500 mg/kg(APS2 group),or 1000 mg/kg(APS3 group)of APS,respectively.The pre-trial period lasted for 7 days,and the formal trial period lasted for 42 days.The results showed as follows:1)Relative to the control group,the APS2 and APS3 groups exhibited a marked increase in average daily gain(ADG)(P＜0.05),by 12.98%and 11.89%,respectively,along with a notable reduction in the feed-to-gain ratio(F/G)(P＜0.05),by 10.67%and 9.55%,respectively.2)Regarding intestinal barrier function,the APS2 and APS3 groups showed markedly reduced serum levels of D-lactic acid(D-LA),diamine oxidase(DAO),and endotoxin(ET)relative to the control group(P＜0.05).Specifically,in the APS2 group,D-LA,DAO,and ET decreased by 26.81%,32.01%,and 28.30%,respectively,and in the APS3 group,they decreased by 24.37%,27.40%,and 24.53%,respectively.Meanwhile,the mRNA expression of zonula occludens-1(ZO-1)and occludin in the jejunal mucosa was significantly elevated(P＜0.05),with increases of 111%and 91%in the APS2 group,and 95%and 78%in the APS3 group,respectively.3)The APS2 and APS3 groups exhibited significantly greater dressing percentage,half-eviscerated percentage,and whole-eviscerated percentage(P＜0.05),and in the APS2 group,these values increased by 5.89%,6.30%,and 6.96%,respectively,and in the APS3 group,they increased by 4.95%,5.24%,and 5.65%,respectively.4)Relative to the control group,the drip loss and cooking loss of muscle in the APS2 and APS3 groups showed marked reductions(P＜0.05),with decreases of 27.70%and 12.77%in the APS2 group,and 24.66%and 11.03%in the APS3 group,respectively.Additionally,muscle shear force was significantly decreased(P＜0.05)by 16.88%in the APS2 group and 15.51%in the APS3 group.In conclusion,dietary supplementation with an appropriate amount of APS can improve the growth performance,intestinal barrier function,meat quality,and slaughter performance of meat rabbits,with the optimal addition level being 500 mg/kg.关键词
黄芪多糖/肉兔/生长性能/肠道屏障/肉品质/屠宰性能Key words
astragalus polysaccharides/meat rabbits/growth performance/intestinal barrier/meat quality/slaughter performance分类
农业科技引用本文复制引用
马双昆,李俊燕..黄芪多糖对肉兔生长性能、肠道屏障功能、肉品质及屠宰性能的影响[J].中国饲料,2026,(14):52-56,5.基金项目
安阳市2026年科技攻关项目(2026C01NY018) （2026C01NY018）
