Journal
JOURNAL OF FISH DISEASES
Volume 35, Issue 11, Pages 809-816Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2761.2012.01432.x
Keywords
coldwater disease; Flavobacterium psychrophilum; probiotic; rainbow trout
Funding
- USDA/CREES WSUUI aquaculture initiative [103306G0017310, 113389G0025555, 111033G002502]
- McNair Achievement Program and Graduate Assistantship
Ask authors/readers for more resources
In this study, 318 bacterial strains were isolated from the gastrointestinal (GI) tracts of 29 rainbow trout, Oncorhynchus mykiss (Walbaum). These bacteria were screened in vitro for their ability to inhibit growth of Flavobacterium 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 the GI tract. This screening resulted in narrowing the pool to 24 bacterial isolates. Those 24 isolates were then tested for pathogenicity in rainbow trout by intraperitoneal injection. Following a 28-day challenge, eight isolates were shown to cause direct mortality and were eliminated from further study. As a result, 16 bacterial isolates were identified as probiotic candidates with the potential to control or reduce disease caused by F. psychrophilum.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available