动物营养学报2017，Vol.29Issue(7)：2502-2511,10.DOI:10.3969/j.issn.1006-267x.2017.07.035
酵母壁多糖对断奶仔猪外周血免疫和肠道免疫的影响
Effects of Yeast Cell Wall Polysaccharide on Peripheral Blood and Gut Immunity of Weaned Piglets
摘要
Abstract
This experiment was conducted to determine the effects of yeast cell wall polysaccharide on peripheral blood and gut immunity of weaned piglets.The experiment was used a single factor experimental design method, a total of 180 piglets with the similar genetic background and health condition weaned at 21 days of age were randomly allotted to 4 groups with 5 replicates per group and 9 pigs per replicate.Pigs in the 4 groups were fed the experimental diets supplemented with 0 (control group), 0.15%, 0.30% and 0.45% yeast cell wall polysaccharide, respectively.The experiment lasted for 21 days.The results showed as follows: 1) compared with the control group, diets supplemented with 0.15%, 0.30% and 0.45% yeast cell wall polysaccharide significantly increased the serum immunoglobulin A content of weaned piglets (P<0.05), diets supplemented with 0.30% and 0.45% yeast cell wall polysaccharide significantly increased the serum immunoglobulin G content of weaned piglets (P<0.05).2) Compared with the control group, diets supplemented with 0.15%, 0.30% and 0.45% yeast cell wall polysaccharide significantly decreased the serum interferon-γ content of weaned piglets (P<0.05), diets supplemented with 0.30% yeast cell wall polysaccharide significantly increased the serum interleukin-10 content of weaned piglets (P<0.05).Diets supplemented with yeast cell wall polysaccharide had no significant effects on the contents of interleukin-2, interleukin-6 and tumor necrosis factor-α in serum of weaned piglets (P>0.05).3) Compared with the control group, diets supplemented with 0.30% and 0.45% yeast cell wall polysaccharide significantly increased the ileum CD4+ lymphocytes content of weaned piglets (P<0.05), diets supplemented with yeast cell wall polysaccharide could increased the ileum CD8+ and CD20+ lymphocytes contents of weaned piglets to a certain extent, but the difference was not significant (P>0.05).These findings indicate that yeast cell wall polysaccharide may enhance the peripheral blood and gut immunity in weaned piglets,relieve the weaning stress of the piglets.关键词
酵母壁多糖/断奶仔猪/免疫球蛋白/淋巴细胞Key words
yeast cell wall polysaccharide/weaned piglets/immunoglobulin/lymphocytes分类
农业科技引用本文复制引用
贺琴,王自蕊,游金明,罗波文,卢亚飞,李兰海..酵母壁多糖对断奶仔猪外周血免疫和肠道免疫的影响[J].动物营养学报,2017,29(7):2502-2511,10.基金项目
江西省重大科技专项(20143ACF60001) （20143ACF60001）
江西省生猪产业技术体系(JXARS-03-营养与饲料岗) （JXARS-03-营养与饲料岗）
