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Microbiological and histopathological investigations of Vibrio alginolyticus infection in cobia Rachycentron canadum (Linnaeus, 1766) cultured in sea cage

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Relation http://eprints.cmfri.org.in/10053/
 
Title Microbiological and histopathological investigations of Vibrio alginolyticus
infection in cobia Rachycentron canadum (Linnaeus, 1766) cultured in sea cage
 
Creator Ramesh Kumar, P
Kalidas, C
Tamilmani, G
Sakthivel, M
Nazar, A K A
Maharshi, V Ashok
Rao, S K Srinivasa
Gopakumar, G
 
Subject Cobia
Fish Diseases
Cage culture
 
Description The occurrence of disease caused by Vibrio alginolyticus in sea cage farming of hatchery produced cobia juveniles is reported
in this paper. The affected animals showed signs of surfacing, sluggish swimming and bilateral exophthalmia followed by
acute mortality. The bacterial pathogen Vibrio alginolyticus was isolated from systemic lesions of infected moribund cobia
fingerlings which was confirmed based on biochemical characteristics. Further the 16S ribosomal RNA of the isolate was
amplified and BLAST analysis of the sequence confirmed that the pathogen is V. alginolyticus. Histologically, the liver of
affected fish showed fatty change, the eyes revealed congestion as well as infiltration of polymorphoneuclear cells in the
choroid layer and acute glomerulornephritis was observed in the kidney.
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/10053/1/9_Rameshkumar.pdf
Ramesh Kumar, P and Kalidas, C and Tamilmani, G and Sakthivel, M and Nazar, A K A and Maharshi, V Ashok and Rao, S K Srinivasa and Gopakumar, G (2014) Microbiological and histopathological investigations of Vibrio alginolyticus infection in cobia Rachycentron canadum (Linnaeus, 1766) cultured in sea cage. Indian Journal of Fisheries, 61 (1). pp. 124-127.