中国畜牧兽医 ›› 2020, Vol. 47 ›› Issue (9): 2779-2788.doi: 10.16431/j.cnki.1671-7236.2020.09.010

• 动物营养与饲料科学 • 上一篇    下一篇

腹泻犊牛与健康犊牛粪便菌群结构组成与功能研究

张子敬1, 朱肖亭1, 吕世杰1, 金磊1, 徐嘉威2, 黄永震2, 李志明3, 王献伟3, 于翔4, 杨尚5, 李静6, 王二耀1, 徐照学1, 施巧婷1   

  1. 1. 河南省农业科学院畜牧兽医研究所, 郑州 450002;
    2. 西北农林科技大学动物科技学院, 杨凌 712100;
    3. 河南省畜牧总站, 郑州 450008;
    4. 河南省动物卫生监督所, 郑州 450002;
    5. 河南省蚕业科学研究院, 郑州 450000;
    6. 泌阳县动物卫生监督所, 泌阳 463700
  • 收稿日期:2020-03-19 出版日期:2020-09-20 发布日期:2020-09-16
  • 通讯作者: 施巧婷 E-mail:sqtsw@126.com
  • 作者简介:张子敬(1985-),男,河南驻马店人,博士,研究方向:动物遗传育种与繁殖,E-mail:vincezhang163@163.com
  • 基金资助:
    河南省农业科学院自主创新专项基金(2019ZC41);河南省农业科学院优秀青年科技基金(2020YQ36);河南省肉牛产业技术体系(S2013-08);国家肉牛牦牛产业技术体系(CARS-37)

Study on the Structure and Function of Fecal Microbiome Between Diarrhea and Healthy Calves

ZHANG Zijing1, ZHU Xiaoting1, LYU Shijie1, JIN Lei1, XU Jiawei2, HUANG Yongzhen2, LI Zhiming3, WANG Xianwei3, YU Xiang4, YANG Shang5, LI Jing6, WANG Eryao1, XU Zhaoxue1, SHI Qiaoting1   

  1. 1. Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    2. College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China;
    3. Henan Provincial Animal Husbandry General Station, Zhengzhou 450008, China;
    4. Animal Health Supervision Institute of Henan Province, Zhengzhou 450002, China;
    5. Henan Academy of Sericulture Science, Zhengzhou 450000, China;
    6. Animal Health Supervision Institute of Biyang, Biyang 463700, China
  • Received:2020-03-19 Online:2020-09-20 Published:2020-09-16

摘要: 本研究旨在探究腹泻与健康犊牛粪便微生物的结构组成与分布特征,筛选出一些可作为评价犊牛腹泻参考指标的特异性菌群。试验采集10份腹泻和10份健康夏南牛犊牛的粪便样本并提取粪便总DNA,运用16S rRNA高通量测序技术,比较腹泻组和健康组在微生物多样性方面(组成及结构)存在的差异,获得两组间具有统计学差异的Biomarker,并对差异功能基因进行注释。结果表明,腹泻犊牛粪便微生物的多样性小于健康犊牛;在门水平上,与健康组相比,腹泻组犊牛粪便中微生物相对丰度显著升高的是变形菌门和梭杆菌门,螺旋菌门显著降低(P<0.05);在属水平上,与健康组相比,腹泻组犊牛粪便微生物中埃希氏-志贺菌属、梭杆菌属、乳杆菌属和梭状芽孢杆菌属相对丰度明显升高,不可培养拟杆菌目S24-7群、拟普雷沃菌属和普雷沃氏菌科的菌属显著降低(P<0.05)。通过对COG功能预测分析,腹泻组在翻译、核糖体结构和起源类群明显降低。通过KEGG代谢途径分析,腹泻组粪便中显著升高的代谢通路是碳水化合物代谢和外源性物质降解和代谢,显著降低的代谢通路分别是细胞增殖和死亡、复制和修复、翻译和转录(P<0.05)。本研究分析了腹泻组和健康组之间的优势菌群,筛选出可以作为犊牛腹泻参考指标的10个Biomarker,并对功能差异基因进行注释,为进一步研究犊牛腹泻的治疗及预防奠定了基础。

关键词: 犊牛; 粪便微生物; 腹泻; 16S rRNA; 高通量测序

Abstract: This study was aimed to identify some specific microbiota to indicate the calf diarrhea by exploring the differences of fecal microbiota composition and function between healthy and diarrhea calves.Fecal samples were collected from 10 diarrheal and 10 healthy Xianan calves and used to extract genomic DNA.Fecal microbial diversity was investigated by 16S rRNA Illumina MiSeq high-throughput sequencing technology.Biomarkers with statistical differences were obtained,the differentially functional genes were annotated between two groups.The results showed that the fecal microbial diversity of diarrhea calves was less than healthy calves.Compared with healthy calves,the abundance of Proteobacteria and Fusobacteria was significantly increased,while Spirochaetae was decreased in calves with diarrhea at phylum level (P<0.05).At genus level,the relative abundances of Escherichia-Shigella,Fusobacterium,Lactobacillus and Clostridium_sensu_stricto_1 exhibited increased calves with diarrhea,the relative abundance of uncultured_bacterium_f_Bacteroidales_S24-7_group,Alloprevotella and Prevotellaceae_NK3B31_group exhibited decreased in calves with diarrhea (P<0.05).The differentially functional genes in diarrheal calves were significantly reduced in bacterial translation,ribosomal structure and biogenesis by COG functional profiles analyzes.The KEGG pathways was analyzed,the pathways in diarrheal calves were significantly increased in carbohydrate metabolism,xenobiotics biodegradation and metabolism,whereas they significantly decreased in cell growth,death,replication,repair,translation and transcription (P<0.05).The dominant bacteria were analyzed and ten biomarkers were identified as indicator for evaluating calf diarrhea between diarrhea and healthy groups in this study.The results provided crucial references for future research on preventing and treating calves diarrhea.

Key words: calves; fecal microbiota; diarrhea; 16S rRNA; high-throughput sequencing

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