Red seaweed supplementation suppresses methanogenesis in the rumen, revealing potentially advantageous traits among hydrogenotrophic bacteria.

ABSTRACT:

Background

Macroalgae belonging to the genus Asparagopsis have shown to reduce methane (CH₄) production during rumen fermentation, while increasing feed efficiency when added to the feed of cattle. However, little is known about how the rumen microbiome responds to Asparagopsis supplementation, and how changes in the microbiome may contribute to changes in rumen function and host phenotype. Here, we generated and analyzed metagenomic and metatranscriptomic data from the rumen microbiome from cows receiving (treatment) and not receiving (control) an Asparagopsis armata supplemented diet.

Results

Using a combination of metatranscriptome and metagenome analysis, we found that reduction of CH₄ emission from animals receiving A. armata was coupled to a signi

SUBMITTER: Zhang P 

PROVIDER: S-EPMC12613782 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature