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

发布时间：2018-01-22 15:53

本文关键词： 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　出处：《动物营养学报》2017年12期 　论文类型：期刊论文

【摘要】：本试验旨在研究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。选取72头体重(62.50±0.83)kg的"杜×长×大"育肥猪,将其随机分为3组,每组4个重复,每个重复6头猪(公母各占1/2)。对照组饲喂基础饲粮,酿酒酵母组饲喂基础饲粮+0.5 g/kg活性干酵母制剂(酵母菌活菌数1.0×1010CFU/kg),芽孢杆菌组饲喂基础饲粮+0.1 g/kg芽孢杆菌制剂(芽孢杆菌活菌数1.0×109CFU/kg)。试验期56 d。结果表明:1)与对照组相比,芽孢杆菌组育肥猪钙和磷的表观消化率显著提高(P0.05),酿酒酵母组钙的表观消化率显著提高(P0.05);2)与对照组相比,酿酒酵母组育肥猪空肠隐窝深度极显著降低(P0.01),空肠绒毛高度/隐窝深度值极显著提高(P0.01);3)与对照组相比,芽孢杆菌组育肥猪空肠和回肠分泌型免疫球蛋白A(SIg A)含量均极显著上升(P0.01)。由此可见,饲粮中添加酿酒酵母和芽孢杆菌均可改善育肥猪对营养物质的消化吸收,其中酿酒酵母对育肥猪肠道形态结构具有一定的改善作用,而芽孢杆菌可提高肠道中的SIg A含量,提高肠道免疫水平。
[Abstract]:The purpose of this experiment was to study the apparent digestibility of nutrient in fattening pigs by Saccharomyces cerevisiae and Bacillus spp. 72 pigs with 62.50 卤0.83kg body weight of "du 脳 Chang 脳 Da" were randomly divided into 3 groups with 4 repeats in each group. There were 6 pigs per duplicate (male and female accounted for 1 / 2). The control group was fed with basic diet. The Saccharomyces cerevisiae group was fed with 0.5 g / kg active dry yeast preparation (1.0 脳 10 10 CFU / kg). Bacillus group fed basic diet 0.1 g / kg Bacillus preparation (Bacillus number 1.0 脳 10 9 CFU / kg 路kg ~ (-1). Experiment period 56 d. The results showed that 1: 1). Compared with the control group. The apparent digestibility of calcium and phosphorus in Bacillus group and Saccharomyces cerevisiae group was significantly higher than that in Saccharomyces cerevisiae group. 2) compared with the control group, the depth of jejunal crypt of the fattening pigs in the Saccharomyces cerevisiae group was significantly lower than that of the control group, and the height of jejunum villi to the depth of crypt was significantly higher than that of the control group. 3) compared with the control group, the content of secretory immunoglobulin A (sig A) in the jejunum and ileum of the fattened pigs in the Bacillus group was significantly higher than that in the control group (P 0.01). The addition of Saccharomyces cerevisiae and Bacillus spp to the diet could improve the digestion and absorption of nutrients in fattening pigs, among which Saccharomyces cerevisiae could improve the intestinal morphology and structure of fattening pigs. Bacillus spp. Can increase the SIg A content and improve the immune level of intestinal tract.
【作者单位】：山西农业大学动物科技学院山西优势肉用家畜高效安全生产协同创新中心;西北农林科技大学;天津农学院;山西省太谷县畜牲兽医技术服务中心范村站;
【基金】：天津市科技计划项目(15ZXZYNC00100) 天津生猪产业技术体系创新团队(ITTPRS2017006) 山西省科学技术发展计划项目
【分类号】：S828.5
【正文快照】： 太谷县畜牲兽医技术服务中心范村站,太谷030801)自发现以来,抗生素被用作药物来保持人和动物的健康[1]。近50年来,抗生素在实际生产中取得了明显的疾病预防和促生长作用,给畜牧业带来了巨大的经济效益。但近20年来,随着科学技术的发展和生活水平的提高,人们逐渐认识到滥用抗生

【相似文献】