Changes in rumen bacterial and archaeal communities over the transition period in primiparous Holstein dairy cows

Journal of Dairy Science
Zhigang ZhuOle Højberg

Abstract

In the present study, we hypothesized that the rumen bacterial and archaeal communities would change significantly over the transition period of dairy cows, mainly as an adaptation to the classical use of low-grain prepartum and high-grain postpartum diets. Bacterial 16S rRNA gene amplicon sequencing of rumen samples from 10 primiparous Holstein dairy cows revealed no changes over the transition period in relative abundance of genera such as Ruminococcus, Butyrivibrio, Clostridium, Coprococcus, and Pseudobutyrivibrio. However, other dominant genus-level taxa, such as Prevotella, unclassified Ruminococcaceae, and unclassified Succinivibrionaceae, showed distinct changes in relative abundance from the prepartum to the postpartum period. Overall, we observed individual fluctuation patterns over the transition period for a range of bacterial taxa that, in some cases, were correlated with observed changes in the rumen short-chain fatty acids profile. Combined results from clone library and terminal-restriction fragment length polymorphism (T-RFLP) analyses, targeting the methyl-coenzyme M reductase α-subunit (mcrA) gene, revealed a methanogenic archaeal community dominated by the Methanobacteriales and Methanomassiliicoccales orders...Continue Reading

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Citations

Nov 11, 2019·International Journal of Biometeorology·Han LiZhili Qi
Feb 1, 2020·Animal Frontiers : the Review Magazine of Animal Agriculture·Daniel Sauvant
Mar 22, 2020·Journal of Dairy Science·Grum GebreyesusGoutam Sahana
May 9, 2021·Animal Microbiome·Chloe MatthewsJim O' Mahony

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