| 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 |
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| 引用本文： | 秦红,赵燕,车向荣,李敏华,蔡传江,郭亮.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[J].动物营养学报,2017,29(8). |
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| 作者姓名： | 秦红 赵燕 车向荣 李敏华 蔡传江 郭亮 |
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| 作者单位： | 1. 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,太谷 030801;2. 西北农林科技大学,杨凌,712100;3. 天津农学院,天津,300384 |
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| 基金项目： | 天津市科技计划项目，天津生猪产业技术体系创新团队，山西省科学技术发展计划项目 |
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| 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。
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| 关 键 词： | 乳酸片球菌 生长性能 抗氧化功能 肠道形态结构 菌群 |
Effects of Pediococcus acidilactici on Growth Performance,Intestinal Antioxidant Function,Morphological Structure and Microflora of Finishing Pigs |
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| QIN Hong,ZHAO Yan,CHE Xiangrong,LI Minhua,CAI Chuanjiang,GUO Liang.Effects of Pediococcus acidilactici on Growth Performance,Intestinal Antioxidant Function,Morphological Structure and Microflora of Finishing Pigs[J].Acta Zoonutrimenta Sinica,2017,29(8). |
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| Authors: | QIN Hong ZHAO Yan CHE Xiangrong LI Minhua CAI Chuanjiang GUO Liang |
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| Abstract: | This study was conducted to investigate effects of Pediococcus acidilactici on growth performance, intestinal antioxidant function, morphological structure and microflora of finishing pigs. Forty-eight crossed-bred (Duroc×Landrace×Yorkshine) finishing pigs with similar body weight (62.57±1.20) kg] were select-ed and randomly allotted to 2 groups with 4 replicates per group and 6 pigs per replicate ( half male and half fe-male) . Control group was fed a basal diet and experimental group was fed the basal diet supplemented with 0.1 g/kg Pediococcus acidilactici (1.0×1010 CFU/g). The experiment lasted for 56 days. The results showed that, compared with control group: 1 ) the supplementation of Pediococcus acidilactici had no significant effects on average daily feed intake, average daily gain, feed to gain ratio ( P>0.05) . 2) Glutathione peroxi-dase activity in duodenum, total superoxide dismutase, total antioxidant capacity activity of jejunum, and cata-lase of ileum were significantly increased by the supplementation of Pediococcus acidilactici (P<0.05). 3) The supplementation of Pediococcus acidilactici significantly decreased crypt depth of duodenum, significantly increased mucosal thickness, intestinal thickness and villus height/crypt depth of duodenum (P<0.05); the supplementation of Pediococcus acidilactici significantly decreased crypt depth of jejunum ( P<0.05) , and sig-nificantly increased villus height/crypt depth (P<0.05); the supplementation of Pediococcus acidilactici sig-nificantly increased villus height of ileum ( P<0.05) . 4) The supplementation of Pediococcus acidilactici sig-nificantly increased lactobacillus count and colonization resistance, and significantly decreased E. coli count of jejunum ( P<0. 05 ) . In conclusion, the supplementation of 0. 1 g/kg Pediococcus acidilactici ( 1. 0 × 1010 CFU/g) can improve intestinal microflora and morphological structure, enhance oxidation resistance, and improve the intestinal health of finishing pigs. |
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| Keywords: | Pediococcus acidilactici growth performance antioxidant function intestinal morphological structure microflora |
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