Dietary macroalgae enhances amino acid metabolism via intestinal Shewanella in grass carp (Ctenopharyngodon idella).

ABSTRACT: The gut microbiome plays pivotal roles in the host's metabolic response to dietary interventions. Dietary macroalgae supplementation represents a promising strategy for enhancing animal growth and health via microbiome modulation. However, the underlying mechanism of how macroalgae supplementation regulates microbiome-host interactions in aquatic species remains unclear. This study investigated the effects of three dietary macroalgae-Sargassum hemiphyllum (S), Asparagopsis taxiformis (A), and Gracilaria lemaneiformis (G)-each supplemented at 5% in feed, on the gut microbiome and metabolism of grass carp (Ctenopharyngodon idella), using integrated approaches of 16S rRNA sequencing, metagenomics, and metabolomics. While all three macroalgae influenced host growth, supplementation of S provid

SUBMITTER: An X 

PROVIDER: S-EPMC12702836 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature