Assessing the relationship between the rumen microbiota and feed efficiency in Nellore steers

作     者：Déborah Romaskevis Gomes Lopes Márcio de Souza Duarte Alex J.La Reau Ibrahim Zuniga Chaves Tiago Antônio de Oliveira Mendes Edenio Detmann Cláudia Braga Pereira Bento Maria Eugênia Zerlotti Mercadante Sarah Figueiredo Martins Bonilha Garret Suen Hilário Cuquetto Mantovani Déborah Romaskevis Gomes Lopes;Márcio de Souza Duarte;Alex J.La Reau;Ibrahim Zuniga Chaves;Tiago Ant?nio de Oliveira Mendes;Edenio Detmann;Cláudia Braga Pereira Bento;Maria Eugênia Zerlotti Mercadante;Sarah Figueiredo Martins Bonilha;Garret Suen;Hilário Cuquetto Mantovani

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