Isolation of bacterial probiotic candidates from the gastrointestinal tract of rainbow trout, Oncorhynchus mykiss (Walbaum), and screening for inhibitory activity against Flavobacterium psychrophilum

In this study, 318 bacterial strains were isolated from the gastrointestinal ( GI ) tracts of 29 rainbow trout, O ncorhynchus mykiss ( W albaum). These bacteria were screened in vitro for their ability to inhibit growth of F lavobacterium psychrophilum , the causative agent of coldwater disease. Bacteria observed to inhibit F . psychrophilum growth were further screened against rainbow trout bile, as an indicator of their ability to survive in...