Red seaweed extracts reduce methane production by altering rumen fermentation and microbial composition in vitro.

ABSTRACT: A series of in vitro batch culture incubations were carried out to investigate changes in rumen fermentation characteristics, methane (CH₄) production, and microbial composition in response to supplementation with five different red seaweed species (Amphiroa anceps, AANC; Asparagopsis taxiformis, ATAX; Chondracanthus tenellus, CTEN; Grateloupia elliptica, GELL; and Gracilaria parvispora, GPAR). Prior to the incubations, the total flavonoid and polyphenol content of the red seaweed extracts was quantified. The incubated substrate consisted of timothy hay and corn grain [60:40 dry matter (DM) basis]. Treatments were substrate mixtures without seaweed extract (CON) or substrate mixtures supplemented with 0.25 mg/mL of red seaweed extract. S

SUBMITTER: Choi Y 

PROVIDER: S-EPMC9709288 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature