Record Details

Carp edema virus in ornamental fish farming in India: A potential threat to koi carps but not to co- cultured Indian major carp or goldfish

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Carp edema virus in ornamental fish farming in India: A potential threat to koi carps but not to co- cultured Indian major carp or goldfish
Not Available
 
Creator P.K Sahoo
S. Pattanayak
A. Paul
M.K Sahoo
P. Kumar
Rajesh
 
Subject Aquarium, Carassius auratus, CEV, Cyprinus carpio koi, Experimental transmission, Goldfish, Koi sleepy disease, Labeo rohita, Rohu
 
Description Not Available
Koi sleepy disease caused by carp edema virus (CEV) of pox virus is a potential carp killer and poses a constant threat to
co-cultured fish. Only limited studies are available on its occurrence from the eastern part of India. Here, we report a largescale mortality of koi carps (Cyprinus carpio koi) in ornamental fish farm of Choudwar, Cuttack, Odisha. The fish showed
clinical signs of ulcers on body, patchy haemorrhages, massive necrosis of gills, and observed sleeping at the bottom of tanks
before death. However, the goldfish maintained in the same tanks did not show any clinical signs or mortality. We noticed
Trichodina infestation in the gills of affected animals and secondary bacterium Aeromonas hydrophila in kidney tissue. The
gills, liver and kidneys of koi carp were found positive for carp edema virus (CEV) (Poxviridae) in PCR followed by
sequencing and blast search, and phylogenetic analysis. The damages to the gills and kidney along with the presence of
intracytoplasmic eosinophilic inclusions in gill epithelial cells upon histopathology suggested viral association. Experimental
challenge with CEV failed to reproduce the disease in Indian major carp and goldfish, the commonly co-cultured fish species
with koi carp, though, the disease was reproduced in koi carp. To our best knowledge, it is the first report of CEV infection
from the farm of the eastern part of the country. Another mortality incidence in ornamental shop retailer in the same locality
also revealed the presence of CEV in koi carp and pointed possibly towards its wide spread. Observations from this study
suggest the need for CEV disease surveillance in the country.
Not Available
 
Date 2023-01-04T09:50:02Z
2023-01-04T09:50:02Z
2020-04
 
Type Journal
 
Identifier Sahoo, P. K., Pattanayak, S., Paul, A., Sahoo, M. K. and Kumar, P. Rajesh (2020). Carp edema virus in ornamental fish farming in India: A potential threat to koi carps but not to co- cultured Indian major carp or goldfish. Indian Journal of Experimental Biology, 58: 254-262.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/75378
 
Language English
 
Relation Not Available;
 
Publisher Not Available