乳酸片球菌对肥育猪生长性能及肠道抗氧化能力、形态结构和菌群的影响

发布时间：2018-04-23 05:28

本文选题：乳酸片球菌 + 生长性能　；参考：《动物营养学报》2017年08期

【摘要】：本试验旨在研究乳酸片球菌对肥育猪生长性能及肠道抗氧化能力、形态结构和菌群的影响。选取48头体重为(62.46±1.20)kg的"杜×长×大"肥育猪,将其随机分为2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,试验组饲喂基础饲粮中添加0.1 g/kg乳酸片球菌制剂(1.0×10~(10)CFU/g)的试验饲粮。试验期56 d。结果表明,与对照组相比:1)饲粮添加乳酸片球菌对肥育猪平均日采食量、平均日增重、料重比无显著影响(P0.05)。2)饲粮添加乳酸片球菌显著提高了肥育猪十二指肠谷胱甘肽过氧化物酶(GSH-Px)活性、空肠总抗氧化能力(T-AOC)和总超氧化物歧化酶(T-SOD)活性以及回肠过氧化氢酶(CAT)活性(P0.05)。3)饲粮添加乳酸片球菌显著降低了肥育猪十二指肠隐窝深度(P0.05),显著提高了黏膜厚度(P0.05)、肠壁厚度(P0.05)以及绒毛高度/隐窝深度(P0.05);显著降低了空肠隐窝深度(P0.05),显著增加了绒毛高度/隐窝深度(P0.05);显著增加了回肠绒毛高度(P0.05)。4)饲粮添加乳酸片球菌显著增加了肥育猪空肠乳酸菌数量、定植抗力(P0.05),显著降低了大肠杆菌数量(P0.05)。由此可见,饲粮添加0.1 g/kg乳酸片球菌(1.0×10~(10)CFU/g)能改善肥育猪肠道菌群和肠道形态结构,增强肠道抗氧化能力,进而促进肥育猪的肠道健康。
[Abstract]:The purpose of this study was to study the effects of planthococcus lactis on growth performance, intestinal antioxidant capacity, morphology and flora of fattening pigs. 48 "du 脳 long 脳 big" fattening pigs, weighing 62.46 卤1.20)kg, were randomly divided into 2 groups, with 4 replicates in each group, 6 pigs per replica (male and female, 1 / 2). The control group was fed with basic diet, and the experimental group was fed with 0.1 g/kg nisococcus lactis (1.0 脳 10 ~ (10)) CFU / g diet. The experimental period was 56 days. The results showed that the average daily feed intake and average daily gain of fattening pigs were increased by adding Lactococcus lactis to the diet at 1: 1 compared with the control group. The feed / weight ratio had no significant effect on the activity of glutathione peroxidase (GSH-Px) in the duodenum of fattened pigs. Total antioxidant capacity of jejunum (T-AOC) and total superoxide dismutase (T-SOD) activity and ileum catalase (CAT) activity (P0.05U. 3) diet supplemented with Lactococcus significantly decreased the depth of duodenal recess (P0.05N) and increased the mucosal thickness (P0.05N). Intestinal wall thickness (P0.05) and villus height / crypt depth (P0.05); decreased jejunal crypt depth (P0.05), significantly increased villous height / crypt depth (P0.05); increased ileal villi height (P0.05). Number of lactic acid bacteria in jejunum of fattening pigs, The colonization resistance (P0.05) significantly reduced the number of Escherichia coli (P0.05). It can be seen that the dietary supplementation of 0. 1 g/kg of planthococcus lactis can improve the intestinal flora and intestinal morphology of fattening pigs, enhance the intestinal antioxidant capacity, and then promote the intestinal health of fattening pigs.
【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;
【基金】：天津市科技计划项目(152XZYNC00100) 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

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