饲料营养 Feed science and technology

血根碱对断奶仔猪生长性能、肠道形态结构及小肠黏膜免疫功能的影响

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  • 1. 湖南农业大学动物科学技术学院, 长沙 410128;
    2. 中国科学院亚热带农业生态研究所, 亚热带农业生态过程 重点实验室, 湖南省畜禽健康养殖工程技术中心, 长沙 410125;
    3. 湖南农业大学, 湖南省植物功能成分利用协同创新中心, 长沙 410128;
    4. 湖南美可达生物 资源有限公司, 长沙 410128;
    5. 浏阳市畜牧兽医水产局, 浏阳 410300
陈家顺(1988-),男,安徽亳州人,博士研究生,从事单胃动物营养与饲料研究。E-mail:730273902@qq.com

收稿日期: 2017-10-18

  网络出版日期: 2018-05-06

基金资助

国家自然科学基金青年科学基金项目(31702126);湖南省研究生科研创新项目(CX2017B348);湖南省教育厅科学研究项目优秀青年项目(17B121);湖南省"湖湘青年科技创新人才"项目(2015RS4053);中科院"百人计划"项目

Effects of Dietary Sanguinarine on Growth Performance, Intestinal Mucosal Morphology and Immune Function of Small Intestinal Mucosa of Weaned Piglets

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  • 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Hunan Provincial Engineering Research Center for Healthy Breeding of Livestock and Poultry, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
    3. Hunan Collaborative Innovation Center for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, China;
    4. Hunan Micolt Bioresource Co., Ltd., Changsha 410128, China;
    5. Bureau of Animal Husbandry and Veterinary and Aquaculture in Liuyang City, Liuyang 410300, China

Received date: 2017-10-18

  Online published: 2018-05-06

摘要

本试验旨在研究血根碱(SAN)对断奶仔猪生长性能、肠道形态结构及小肠黏膜免疫功能的影响。试验选取23日龄平均体重为(6.55±0.18)kg的健康"杜×长×白"三元杂交断奶仔猪36头,按体重相近、性别比例相同原则随机分为3组,分别饲喂基础饲粮(对照组)、基础饲粮+75 mg/kg金霉素(抗生素组)、基础饲粮+50 mg/kg SAN(SAN组),每组12个重复,每个重复1头猪,试验期21 d。结果表明:1)与对照组相比,SAN组和抗生素组的平均日增重和平均日采食量显著提高(P<0.05),料重比和腹泻率显著降低(P<0.05);但SAN组与抗生素组间以上生长性能指标均无显著性差异(P>0.05)。2)与对照组相比,SAN组和抗生素组的十二指肠和空肠绒毛高度、绒毛高度/隐窝深度(V/C)值显著或极显著升高(P<0.05或P<0.01),但SAN组和抗生素组间以上指标均无显著差异(P>0.05);而SAN组回肠绒毛高度、V/C值显著高于其他2组(P<0.05)。3)与对照组相比,SAN和抗生素组的十二指肠、空肠和回肠黏膜免疫球蛋白A、免疫球蛋白G和免疫球蛋白M含量均显著或极显著升高(除十二指肠黏膜免疫球蛋白G和空肠黏膜免疫球蛋白M外)(P<0.05或P<0.01);但SAN组和抗生素组间以上指标均无显著差异(P>0.05)。由此可见,饲粮中添加SAN可以改善肠黏膜形态,提高小肠黏膜免疫功能,从而提高断奶仔猪的生长性能,达到与添加抗生素相当的效果。

本文引用格式

陈家顺, 康宝聚, 曾建国, 胡海波, 赵玉蓉, 陈柳, 姚康, 符晨星 . 血根碱对断奶仔猪生长性能、肠道形态结构及小肠黏膜免疫功能的影响[J]. 动物营养学报, 2018 , 30(5) : 1845 -1853 . DOI: 10.3969/j.issn.1006-267x.2018.05.027

Abstract

This experiment was conducted to study the effects of dietary sanguinarine (SAN) on growth performance, intestinal mucosal morphology and immune function of small intestinal mucosa of weaned piglets. Thirty-six "Duroc×Landrace×Yorkshire" hybrid pigs with initial weight of (6.55±0.18) kg were randomly divided into three groups with twelve replicates per group and one pig per replicate according to similar body weight and the same ratio of gender. The pigs in the control group were fed a basal diet, those in antibiotic group were fed the basal diet supplemented with 75 mg/kg chlortetracycline, and the others in SAN group were fed the basal diet supplemented with 50 mg/kg sanguinarine. The experiment lasted for 21 days. The results showed as follows:1) compared with the control group, the average daily gain and the average daily feed intake were significantly increased (P<0.05), and the ratio of feed to gain and diarrhea rate were significantly decreased (P<0.05) in SAN group and antibiotic group. But there were no significant differences in above growth performance indices between SAN group and antibiotic group (P>0.05). 2) Compared with the control group, the villus height and the ratio of villus height to crypt depth (V/C) of duodenum and jejunum were significantly increased (P<0.05 or P<0.01) in SAN group and antibiotic group, and no significant differences were found in above indices between SAN group and antibiotic group (P>0.05), while the villus height and V/C of ileum in SAN group were significantly higher than those in the other two groups (P<0.05). 3) Compared with the control group, the contents of immunoglobulin A (IgA), immunoglobulin G (IgG) and immunoglobulin M (IgM) in duodenum, jejunum and ileum in SAN group and antibiotic group were significantly increased (P<0.05 or P<0.01) except the IgG content in duodenum mucosa and the IgM content in jejunum mucosa. But no significant differences were found in above indices between SAN group and antibiotic group (P>0.05). In conclusion, dietary sanguinarine with the same effects of antibiotic can improve intestinal mucosal morphology, and increase small intestinal mucosal immune function, consequently improve the growth performance of weaned piglets.

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