Bacillus velezensis as a probiotic to enhance gut health and disease resistance in Bullfrogs (Aquarana catesbeiana)
Samples used for gut microbiota analysis in this study were aseptically collected from the hindgut contents of bullfrogs (Aquarana catesbeiana). The animals were randomly assigned to four groups: a control group fed the basal diet, and three experimental groups (BV1, BV2, and BV3) fed diets supplemented with Bacillus velezensis YSJ-24 at concentrations of 10^7, 10^8, and 10^9 CFU/g feed, respectively, with five replicates per group.