Heat stress influence the microbiota and organic acids concentration in beef cattle rumen

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSales, Gustavo Felipe Correia-
Autor(es): dc.creatorCarvalho, Beatriz Ferreira-
Autor(es): dc.creatorSchwan, Rosane Freitas-
Autor(es): dc.creatorVilela, Leonardo de Figueiredo-
Autor(es): dc.creatorMeneses, Javier Andrés Moreno-
Autor(es): dc.creatorGionbelli, Mateus Pies-
Autor(es): dc.creatorÁvila, Carla Luiza da Silva-
Data de aceite: dc.date.accessioned2026-02-09T11:38:48Z-
Data de disponibilização: dc.date.available2026-02-09T11:38:48Z-
Data de envio: dc.date.issued2022-01-19-
Data de envio: dc.date.issued2022-01-19-
Data de envio: dc.date.issued2021-04-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br//handle/1/48929-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.jtherbio.2021.102897-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1144277-
Descrição: dc.descriptionThe objective of this study was to evaluate the effect of heat stress on meta-taxonomic and metabolic profiles of prokaryotes in beef cattle rumen. Six pure-breed Nellore heifers with ruminal cannulas were used in the study. Six treatments were tested in a 6 × 6 Latin Square with six periods of 21days. The treatments were evaluated in a 2 × 2 + 2 factorial arrangement, consisting of 4 combinations: two temperatures conditions (thermoneutral, TN: 24 °C; and heat stress, HS: 34 °C) and two dietary energy concentration [low-energy (37% non-fibrous carbohydrates – NFC, 12 Mcal of metabolizable energy per kg of dry matter) or high-energy concentration (50.5% NFC, 18.49 Mcal of metabolizable energy per kg of dry matter)] plus two additional treatments with animals maintained in TN conditions but with your intake restricted (TN-RI) to the same of the heifers in HS with the two dietary energy concentration. The meta-genome was sequenced by MiSeq Sequencing System platform, and the DNA sequences were analysed using Geneious 10.2.3 software. The metabolic profile was evaluated by liquid and gas chromatography. Animals under HS presented lower (P = 0.04) prokaryote richness than animals under TN conditions. The genera Flavonifractor (1.4%), Treponema (0.6%) and Ruminococcus (0.9%) showed the lowest (P < 0.04) and Carnobacterium (7.7%) the highest (P = 0.02) relative abundance when the animals were submitted to HS, in relation to animals in TN. A total of 49 different metabolites were identified in the ruminal samples. The concentration of isobutyric acid (4.32 mM) was highest in bovine rumen under HS conditions. Heat stress influenced the microbiota and concentration of some organic acids in beef cattle rumen. There was a reduction in the richness of rumen in cattle under heat stress, but the diversity of prokaryotes was not affected.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Thermal Biology-
Palavras-chave: dc.subjectSolid-phase micro-extraction-
Palavras-chave: dc.subjectRumen volatile fatty acids-
Palavras-chave: dc.subjectRumen prokaryote-
Palavras-chave: dc.subjectMeta-taxonomic-
Palavras-chave: dc.subjectRumen diversity-
Palavras-chave: dc.subjectDietary energy concentration-
Palavras-chave: dc.subjectMicroextração em fase sólida-
Palavras-chave: dc.subjectÁcidos graxos voláteis do rúmen-
Palavras-chave: dc.subjectRúmen procarioto-
Palavras-chave: dc.subjectMeta-taxonômico-
Palavras-chave: dc.subjectDiversidade ruminal-
Palavras-chave: dc.subjectConcentração de energia dietética-
Título: dc.titleHeat stress influence the microbiota and organic acids concentration in beef cattle rumen-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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