Corn Straw Total Mix Dietary Supplementation of Bacillus Subtilis-Enhanced Growth Performance of Lambs by Favorably Modulating Rumen Bacterial Microbiome

In this experiment, B. subtilis was added to pelletized straw-based total mixed ration, and the rumen microbial diversity of house-fed Duhan hybrid sheep compared. Ten 3-month-old weaned lambs were separated into two groups fattened for 80 days using a single-factor trial design. During fattening period, control experiment fed with same except that group supplemented subtilis. The results showed addition could significantly increase daily weight gain, abundance, lamb. Among them, proportion flora such as Bacteroidetes increased, producing more acetate, iso-butyrate, butyrate, obtaining higher energy efficiency.