动物营养学报 >

2020 , Vol. 32 >Issue 4: 1916 - 1926

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.04.052

研究简报 SHORT COMMUNICATION

丁酸钠对断奶羔羊胃肠道发育的影响

  • 左丽君 ,
  • 陈想 ,
  • 王可鑫 ,
  • 姜宁 ,
  • 张爱忠
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  • 黑龙江八一农垦大学动物科技学院, 黑龙江省寒区饲料资源高效利用与营养调控重点实验室, 大庆 163319
左丽君(1995-),女,湖南湘乡人,硕士研究生,从事动物营养与饲料科学研究。E-mail:763885019@qq.com

收稿日期: 2019-10-27

  网络出版日期: 2020-04-16

基金资助

黑龙江省自然科学基金项目（LH2019C053）；国家重点研发计划项目（2018YFD0502100）

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Effects of Sodium Butyrate on Gastrointestinal Tract Development of Weaned Lambs

  • ZUO Lijun ,
  • CHEN Xiang ,
  • WANG Kexin ,
  • JIANG Ning ,
  • ZHANG Aizhong
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  • Heilongjiang Key Laboratory of High Efficiency Utilization of Feed Resources and Nutrition Manipulation in Cold Region, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China

Received date: 2019-10-27

  Online published: 2020-04-16

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摘要

本试验旨在研究丁酸钠对断奶羔羊胃肠道发育的影响。选取24只42日龄的断奶羔羊，随机分成4组，每组6个重复。空白对照组饲喂基础饲粮，抗生素组饲喂在基础饲粮中添加250 mg/kg黄霉素的饲粮，丁酸钠A组和丁酸钠B组分别饲喂在基础饲粮中添加2和3 g/kg包膜丁酸钠的饲粮。各组分别在试验第14天、第28天选取3只羔羊屠宰取样。结果表明：试验第14天时，各组断奶羔羊的瘤胃相对质量和相对容积以及各胃肠道形态指标均无显著差异（P>0.05）；试验第28天时，与空白对照组相比，丁酸钠B组瘤胃背囊的肌层厚度，瘤胃腹囊的肌层厚度、乳头高度，十二指肠、空肠和回肠绒毛高度，空肠绒毛表面积以及空肠和回肠绒毛高度/隐窝深度显著增加（P<0.05）。由此可见，在饲粮中添加3 g/kg包膜丁酸钠并持续饲喂28 d可以促进断奶羔羊瘤胃乳头和肌层以及肠道绒毛的生长，增加肠道绒毛高度与隐窝深度的比值，有利于胃肠道的发育。

关键词： 断奶羔羊; 丁酸钠; 瘤胃; 小肠; 发育

本文引用格式

左丽君 , 陈想 , 王可鑫 , 姜宁 , 张爱忠 . 丁酸钠对断奶羔羊胃肠道发育的影响[J]. 动物营养学报, 2020 , 32(4) : 1916 -1926 . DOI: 10.3969/j.issn.1006-267x.2020.04.052

Abstract

This experiment was conducted to study the effects of sodium butyrate on gastrointestinal tract development of weaned lambs. Twenty-four 42-day-old weaned lambs were randomly divided into 4 groups with 6 replicates in each group and 1 lamb in each replicate. Lambs in blank control group were fed a basal diet, lambs in antibiotic group were fed the basal diet supplemented with 250 mg/kg of flavomycin, and lambs in sodium butyrate group A and sodium butyrate group B were fed the basal diet supplemented 2 and 3 g/kg coated sodium butyrate, respectively. On days 14 and 28 of the trial, three lambs were selected from each group for slaughter sampling. The results showed that no significant differences in rumen relative weight and relative volume and each gastrointestinal tract morphology indices of weaned lambs among groups on day 14 of the trial (P>0.05). On day 28 of the trial, compared with the blank control group, the muscular layer thickness of rumen dorsal location and the muscular layer thickness and papillae height of rumen abdominal location in sodium butyrate group B were significantly increased (P<0.05), as well as the villus height of duodenum, jejunum and ileum, the villi surface area of jejunum and the villus height/crypt depth of jejunum and ileum (P<0.05). It can be seen that adding 3 g/kg of coated sodium butyrate to the diet for 28 days can promote the growth of rumen papillae and muscular layer, promote the growth of intestinal villi, and increase the intestinal villi height and villus height/crypt depth, which is beneficial to the development of gastrointestinal tract of weaned lambs.

Key words： weaned lambs; sodium butyrate; rumen; small intestine; development

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