Assessing the relationship between the rumen microbiota and feed efficiency in Nellore steers
Assessing the relationship between the rumen microbiota and feed efficiency in Nellore steers作者机构:Departamento de MicrobiologiaUniversidade Federal de ViçosaViçosaMG 36570-900Brazil Departamento de ZootecniaUniversidade Federal de ViçosaViçosaMinas GeraisBrazil Department of BacteriologyUniversity of Wisconsin-MadisonMadisonWIUSA Departamento de Bioquímia e Biologia MolecularUniversidade Federal de ViçosaViçosaMinas GeraisBrazil Instituto de ZootecniaCentro APTA Bovinos de CorteSertãozinhoSão PauloBrazil
出 版 物:《Journal of Animal Science and Biotechnology》 (畜牧与生物技术杂志(英文版))
年 卷 期:2021年第12卷第4期
页 面:1645-1661页
核心收录:
学科分类:0710[理学-生物学] 0831[工学-生物医学工程(可授工学、理学、医学学位)] 0832[工学-食品科学与工程(可授工学、农学学位)] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 0905[农学-畜牧学] 0906[农学-兽医学] 09[农学] 0703[理学-化学] 0836[工学-生物工程]
基 金:supported by Fundação de AmparoàPesquisa do Estado de Minas Gerais-FAPEMIG[grant number APQ-02171-15] Conselho Nacional de Desenvolvimento Científico e Tecnológico-CNPq[grant number PVE 313792/2014-3] Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-CAPES/Proex PPGMBA/UFV[grant number 0001] the Instituto Nacional de Ciência e Tecnologia de Ciência Animal-INCT-CA This work was also supported by a traineeship from the National Institute of Allergy Infectious Diseases of the National Institutes of Health[grant number T32AI55397]to ALR
主 题:Beef cattle ITS1 region Next-generation sequencing RFI Rumen microbiota 16S rRNA gene
摘 要:Background:Ruminants rely upon a complex community of microbes in their rumen to convert host-indigestible feed into ***,little is known about the association between the rumen microbiota and feed efficiency traits in Nellore(Bos indicus)cattle,a breed of major economic importance to the global beef ***,we compare the composition of the bacterial,archaeal and fungal communities in the rumen of Nellore steers with high and low feed efficiency(FE)phenotypes,as measured by residual feed intake(RFI).Results:The Firmicutes to Bacteroidetes ratio was significantly higher(P0.05)in positive-RFI steers(p-RFI,low feed efficiency)than in negative-RFI(n-RFI,high feed efficiency)*** differences in bacterial composition from steers with high and low FE were mainly associated with members of the families Lachnospiraceae,Ruminococcaceae and Christensenellaceae,as well as the genus *** community richness was lower(P0.05)in p-RFI than in n-RFI steers and the genus Methanobrevibacter was either increased or exclusive of p-RFI *** fungal genus Buwchfawromyces was more abundant in the rumen solid fraction of n-RFI steers(P0.05)and a highly abundant OTU belonging to the genus Piromyces was also increased in the rumen microbiota of highefficiency ***,analysis of rumen fermentation variables and functional predictions indicated similar metabolic outputs for the microbiota of distinct FE ***:Our results demonstrate that differences in the ruminal microbiota of high and low FE Nellore steers comprise specific taxa from the bacterial,archaeal and fungal *** OTUs belonging to the genus Piromyces were identified in animals showing high feed efficiency,whereas among archaea,Methanobrevibacter was associated with steers classified as *** identification of specific RFI-associated microorganisms in Nellore steers could guide further studies targeting the isolation and functional characterization