动物营养学报2017，Vol.29Issue(12)：4459-4468,10.DOI:10.3969/j.issn.1006-267x.2017.12.026
酿酒酵母和芽孢杆菌对育肥猪养分表观消化率 、肠道形态结构和肠道免疫的影响
Effects of Saccharomyces cerevisiae and Bacillus on Nutrient Apparent Digestibility, Intestinal Morphological Structure and Intestinal Immunity of Finishing Pigs
摘要
Abstract
This study was conducted to investigate the effects of Saccharomyces cerevisiae and Bacillus on nu-trient apparent digestibility, intestinal morphological structure and intestinal immunity of finishing pigs.A total of 72 crossed-bred (Duroc×Landrace×Yorkshine) finishing pigs with similar body weight of (62.50±0.83) kg were selected and randomly allotted to 3 groups with 4 replicates per group and 6 pigs per replicate ( half male and half female) .Pigs in the control group were fed a basal diet, in Saccharomyces cerevisiae group were fed the basal diet supplemented with 0.5 g/kg active dry yeast preparation (1.0×1010 CFU/kg Saccharomycetes), and in Bacillus group were fed the basal diet supplemented with 0.1 g/kg Bacillus preparation ( 1.0 × 109 CFU/kg Bacillus).The experiment lasted for 56 days.The results showed as follows: 1) compared with control group, the apparent digestibility of calcium and phosphorus was significantly increased in Bacillus group (P<0.05), and the apparent digestibility of calcium was significantly increased in Saccharomyces cerevisiae group ( P<0.05) .2) Compared with control group, the jejunum crypt depth of pigs was extremely significant-ly decreased ( P<0.01) , and the ratio of villus height to crypt depth in jejunum was extremely significantly en-hanced in Saccharomyces cerevisiae group ( P<0.01) .3) Compared with control group, the secretory immu-noglobulin A ( SIgA) content in jejunum and ileum of pigs in Bacillus group was extremely significantly in-creased ( P<0.01) .In conclusion, dietary supplementation with Saccharomyces cerevisiae and Bacillus can im-prove the digestion and absorption of nutrients of finishing pigs, adding Saccharomyces cerevisiae can enhance the intestinal morphological structure, supplementation with Bacillus can increase the SIgA content in intestine and improve intestinal immunity level.关键词
酵母菌/芽孢杆菌/育肥猪/表观消化率/肠道形态结构/肠道细胞因子Key words
Saccharomycetes/Bacillus/finishing pig/apparent digestibility/intestinal morphological struc-ture/intestinal cytokines分类
农业科技引用本文复制引用
秦红,蔡传江,赵燕,高航,车向荣,郭亮,郝爱萍..酿酒酵母和芽孢杆菌对育肥猪养分表观消化率 、肠道形态结构和肠道免疫的影响[J].动物营养学报,2017,29(12):4459-4468,10.基金项目
天津市科技计划项目(15ZXZYNC00100) （15ZXZYNC00100）
天津生猪产业技术体系创新团队(ITTPRS2017006) （ITTPRS2017006）
山西省科学技术发展计划项目 （）
