Survival of vaccinated, feed-trained largemouth bass fry (Micropterus salmoides floridanus) during natural exposure to Flavobacterium columnare.
Vaccinated, feed-trained largemouth bass fry (Micropterus salmoides floridanus) were cohabited with sham-vaccinated fish. Fish were exposed, under natural conditions, to Flavobacterium columnare, a ubiquitous bacterium associated with columnaris disease. During every time interval, the probability that a vaccinated fish would survive past time, t, was greater than for sham-vaccinated fish and survivor functions were significantly different (p-value <0.001). Overall, vaccinated fish had a 43% lower risk of death during the field trial. Overall incidence was 1.7 times greater for the sham-vaccinated (1.4%/d) as compared to the vaccinated fish (0.8%/d). Vaccination with AQUAVAC-COL (Intervet/Schering-Plough Animal Health) significantly reduced the risk of death from columnaris disease in feed-trained largemouth bass fry.
Bebak
Julie
J
USDA ARS AAHRU, 990 Wire Rd., Auburn, AL 36832, USA. julie.bebak@ars.usda.gov
Matthews
Michael
M
Shoemaker
Craig
C
D000818:Animals; D001428:Bacterial Vaccines / Q000276:immunology*; D001492:Bass / Q000276:immunology*; D005393:Fish Diseases / Q000276:immunology / Q000517:prevention & control*; D045826:Flavobacteriaceae Infections / Q000276:immunology / Q000517:prevention & control / Q000662:veterinary*; D005417:Flavobacterium / Q000276:immunology*; D016019:Survival Analysis
D001428:Bacterial Vaccines