2-Hydroxy-4-(Methylthio) Butanoic Acid Isopropyl Ester Supplementation Altered Ruminal and Cecal Bacterial Composition and Improved Growth Performance of Finishing Beef Cattle.

ABSTRACT: The objective of this study was to evaluate the effects of isopropyl ester of 2-hydroxy-4-(methylthio)-butyrate acid (HMBi) on ruminal and cecal fermentation, microbial composition, nutrient digestibility, plasma biochemical parameters, and growth performance in finishing beef cattle. The experiment was conducted for 120 days by a complete randomized block design. Sixty 24-month-old Angus steers (723.9 ± 11.6 kg) were randomly assigned to one of the flowing three treatments: basal diet (the concentrate: 7.6 kg/head·d^-1, the rice straw: ad libitum) supplemented with 0 g/d MetaSmart^® (H₀), a basal diet supplemented with 15 g/d of MetaSmart^® (H₁₅), and a basal diet supplemented with 30 g/d of MetaSmart^® (H₃₀).

SUBMITTER: Qin X 

PROVIDER: S-EPMC9116427 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature