Betaine addition as a potent ruminal fermentation modulator under hyperthermal and hyperosmotic conditions in vitro.

ABSTRACT: BACKGROUND:Climatic and dietary shifts predispose ruminal microbes to hyperthermal and hyperosmotic stress, leading to poor fermentation and subsequently adverse effects on ruminant productivity. Betaine may function as substrate, osmolyte, antioxidant, and methyl donor for microbes. However, its effect depends on the extent of microbial catabolism. This study revealed the ruminal disappearance kinetics of betaine and its dose effect on ruminal fermentation during thermal and osmotic stress using a rumen simulation technique. RESULTS:Three different betaine doses were used: 0, 50, and 286 mg L-1 ; each was assigned to two incubation temperatures (39.5 and 42 °C) and two osmotic conditions (295 and 420 mOsmol kg-1 ). Betaine disappeared rapidly within the first 6 h of incubation; however, t

SUBMITTER: Mahmood M 

PROVIDER: S-EPMC7078755 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature