Temperature and humidity index (THI)-induced rumen bacterial community changes in goats

Applied Microbiology and Biotechnology
Shu ZhongYuxin Yang

Abstract

The rumen microbiome is thought to play an important role in maintaining normal gastrointestinal metabolism and nutrient absorption in ruminants. The present study was designed to investigate the effect of heat stress on the rumen microbiome of goats using 16S rRNA sequencing technology. Six female goats were randomly allocated into two control metabolic chambers: A and B (in which the temperature and humidity could be precisely controlled with a precision deviation of ± 0.5 °C and ± 5%, with three goats/chamber). Dynamic changes in the rumen bacterial community were detected under 16 gradually increasing temperature and humidity indexes (THIs). Heat stress had no significant effect on alpha diversity but affected the main phyla and genera of the goat rumen microbiota. With a deeper level of heat stress, the TH groups formed a distinct cluster that differed from that of the control check (CK) group. The dominant phylum transitioned from Firmicutes to Bacteroidetes, and co-exclusion occurred between these two phyla. With the increase in THI, the content of probiotics in the Lachnospiraceae_ND3007_group (P < 0.05) decreased, and the abundance of pathogenic bacteria, such as Erysipelotrichaceae_UCG-004 and Treponema_2, increased; ...Continue Reading

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Citations

Oct 18, 2019·Animals : an Open Access Journal From MDPI·Qin HuoXuezhao Sun
Sep 17, 2020·Animals : an Open Access Journal From MDPI·Xian ZouDewu Liu
Nov 10, 2020·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Adrian Stencel
Nov 21, 2020·The Journal of Dairy Research·Sylvie Giger-ReverdinValérie Berthelot
Apr 18, 2021·Journal of Thermal Biology·Gustavo Felipe Correia SalesCarla Luiza da Silva Ávila
Sep 14, 2021·Frontiers in Microbiology·Chaoyue WenMingliang Jin

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Datasets Mentioned

BETA
SRP162026

Methods Mentioned

BETA
PCR
electrophoresis
acetylation

Software Mentioned

DA
UPARSE
vegan package
SPSS
MOTHUR
Trimmomatic
Adonis
PICRUSt
R

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