动物营养学报 >

2020 , Vol. 32 >Issue 2: 664 - 673

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.02.022

猪营养与饲料 SWINE NUTRITION AND FEED

饲粮添加不同水平三丁酸甘油酯对断奶仔猪生长性能、血清生化指标、肠组织形态和养分消化率的影响

  • 朱荣生 ,
  • 徐伟 ,
  • 王怀中 ,
  • 孙守礼 ,
  • 刘兴华 ,
  • 刘俊珍 ,
  • 呼红梅
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  • 1. 山东省农业科学院畜牧兽医研究所, 济南 250100;
    2. 山东省畜禽疫病防治与繁育重点实验室, 济南 250100;
    3. 山东省动物卫生技术中心, 济南 250022
朱荣生(1976-),男,山东阳谷人,硕士研究生,从事动物营养与饲料科学研究。E-mail:zrschevy@163.com同等贡献作者

收稿日期: 2019-07-31

  网络出版日期: 2020-02-21

基金资助

山东省农业科学院农业科技创新工程（CXGC2017B02）

收起

Effects of Different Supplemental Levels of Tributyrin on Growth Performance, Serum Biochemical Indices, Intestinal Morphology and Nutrient Digestibility of Weaned Piglets

  • ZHU Rongsheng ,
  • XU Wei ,
  • WANG Huaizhong ,
  • SUN Shouli ,
  • LIU Xinhua ,
  • LIU Junzhen ,
  • HU Hongmei
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  • 1. Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China;
    2. Key Laboratory of Disease Control and Animal Breeding of Shandong Province, Jinan 250100, China;
    3. Shandong Animal Health Technology Center, Jinan 250022, China

Received date: 2019-07-31

  Online published: 2020-02-21

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摘要

本试验旨在研究饲粮添加不同水平三丁酸甘油酯对断奶仔猪生长性能、血清生化指标、肠组织形态和养分消化率的影响。选取平均体重为7.66 kg的21日龄"杜×长×大"断奶仔猪200头，随机分为5组，每组5个重复，每个重复8头猪。对照组饲喂添加40 mg/kg杆菌肽锌的基础饲粮，试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组在基础饲粮中分别添加1 000、1 500、2 000、2 500 mg/kg三丁酸甘油酯，试验期为42 d。结果表明：与对照组相比，饲粮中添加2 000和2 500 mg/kg三丁酸甘油酯显著提高了仔猪平均日增重（P<0.05），显著降低了料重比（P<0.05），显著增加了血清中免疫球蛋白M含量（P<0.05）；饲粮中添加1 500、2 000、2 500 mg/kg三丁酸甘油酯显著提高了仔猪血清葡萄糖和总蛋白含量（P<0.05），显著提高了空肠、回肠的绒毛高度和绒毛高度/隐窝深度（P<0.05），显著提高了仔猪对饲粮中粗蛋白质、粗脂肪、钙和磷的表观消化率（P<0.05），显著降低了血清中球蛋白含量和二胺氧化酶活性（P<0.05）；饲粮中添加1 000 mg/kg三丁酸甘油酯显著提高了血清中总蛋白含量（P<0.05），显著降低了血清中二胺氧化酶活性（P<0.05），显著提高了仔猪对饲粮中粗蛋白质和粗脂肪的表观消化率（P<0.05）。由此可见，仔猪饲粮中添加1 000~1 500 mg/kg三丁酸甘油酯可替代抗生素药物添加剂；饲粮中添加2 000~2 500 mg/kg三丁酸甘油酯不仅可替代抗生素药物添加剂，而且可显著提高仔猪生长性能，改善肠组织形态，增强免疫力，提高养分消化率。

关键词： 三丁酸甘油酯; 断奶仔猪; 生长性能; 血清生化指标; 肠组织形态; 养分消化率

本文引用格式

朱荣生 , 徐伟 , 王怀中 , 孙守礼 , 刘兴华 , 刘俊珍 , 呼红梅 . 饲粮添加不同水平三丁酸甘油酯对断奶仔猪生长性能、血清生化指标、肠组织形态和养分消化率的影响[J]. 动物营养学报, 2020 , 32(2) : 664 -673 . DOI: 10.3969/j.issn.1006-267x.2020.02.022

Abstract

This experiment was to evaluate the effects of different supplemental levels of tributyrin on the growth performance, serum biochemical indices, intestinal morphology and nutrient digestibility of weaned piglets. Two hundred "Duroc×Landrace×Large White" weaned piglets at the age of 21 days with 7.66 kg were selected and randomly divided into 5 groups with 5 replicates in each group and 8 pigs in each replicate. Pigs in the control group were fed the basal diet supplemented with 40 mg/kg bacitracin zinc, and those in the experimental groups Ⅰ, Ⅱ, Ⅲ and Ⅳ were fed the basal diets supplemented with 1 000, 1 500, 2 000 and 2 500 mg/kg tributyrin, respectively. The trial lasted for 42 days. The results showed that, compared with the control group, dietary 2 000 and 2 500 mg/kg tributyrin significantly increased the average daily gain (P<0.05), significantly decreased the feed to gain ratio (P<0.05), and significantly increased the serum content of immunoglobulin M (P<0.05) of weaned piglets. Compared with the control group, dietary 1 500, 2 000 and 2 500 mg/kg tributyrin significantly increased the contents of serum glucose and total protein (P<0.05), significantly increased the villus height and the villus height to crypt depth ratio in jejunum and ileum (P<0.05), significantly increased the apparent digestibility of crude protein, crude fat, calcium and phosphorus (P<0.05), and significantly decreased the globulin content and the diamine oxidase activity in serum (P<0.05) of weaned piglets. Compared with the control group, dietary 1 000 mg/kg tributyrate significantly increased the serum total protein content (P<0.05), significantly decreased the serum diamine oxidase activity (P<0.05), and significantly increased the apparent digestibility of crude protein and crude fat (P<0.05) of weaned piglets. It is concluded that dietary 1 000 to 1 500 mg/kg tributyrin can be a substitute for the antibiotic drug additives, and dietary 2 000 to 2 500 mg/kg tributyrin can not only replace the antibiotic drug additives, but also significantly improve the growth performance, promote intestinal morphology, enhance immunity and increase nutrient digestibility of weaned piglets.

Key words： tributyrin; weaned piglets; growth performance; serum biochemical indices; intestinal morphology; nutrient digestibility

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