本试验旨在研究谷氨酰胺、丁酸梭菌及其二者复合添加对断奶仔猪生长性能、免疫功能、小肠形态结构和盲肠菌群的影响。试验选用288头21日龄断奶的杜×大×长三元杂交仔猪,随机分为4组,每组3个重复,每个重复24头猪。分别饲喂基础饲粮(对照组)、基础饲粮+1%谷氨酰胺(谷氨酰胺组)、基础饲粮+500 m g/kg丁酸梭菌(丁酸梭菌组)和基础饲粮+1%谷氨酰胺+500 m g/kg丁酸梭菌(复合组)。结果表明:1)断奶后14~21及0~21 d,谷氨酰胺组和复合组的平均日增重显著高于对照组(P<0.05),且复合组的平均日增重显著大于丁酸梭菌组(P<0.05),断奶后0~21 d,复合组的料重比显著低于对照组(P<0.05)。2)断奶后第7天,复合组补体4(C4)水平显著高于对照组(P<0.05),各试验组血清超氧化物歧化酶(SOD)活性均显著高于对照组(P<0.05),丁酸梭菌组和复合组血清总抗氧化能力(T-AOC)显著高于对照组(P<0.05),断奶后第14天(P<0.05),各试验组的溶菌酶活性、补体3(C3)水平和T-AOC均显著高于对照组(P<0.05),谷氨酰胺组和复合组C4水平和SOD活性显著高于对照组(P...
【英文摘要】
This experiment was conducted to investigate the effects of glutamine(Gln) and Clostridium butyricum(CB) on growth performance,immune function,small intestinal morphology and cecal microflora in weanling piglets.Two hundred and eighty-eight piglets weaned at the age of 21 d were randomly divided into four groups with three replicates in every group and twenty-four piglets in every replicate.The four groups were basal diet group(CT),basal diet+1% glutamine group(GT),basal diet+500 mg/kg Clostridium butyricum...