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Loose shell syndrome (LSS) of cultured Penaeus monodon - microbiological and histopathological investigations

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Relation http://eprints.cmfri.org.in/9115/
 
Title Loose shell syndrome (LSS) of cultured Penaeus monodon - microbiological
and histopathological investigations
 
Creator Loka, Jayasree
Janakiram, P
Geetha, G K
Sivaprasad, B
Veerendrakumar, M
 
Subject Aquaculture
Fish Diseases
 
Description Investigations were undertaken on loose shell syndrome (LSS) of cultured Penaeus monodon during the period 2009 - 2010.
The infected shrimps were collected from culture ponds of east and west Godavari districts in Andhra Pradesh, India and
were subjected to microbiological and histopathological studies. Four species of Vibrio were isolated from the diseased
shrimps and were identified as V. harveyi, V. alginolyticus, V. metschnikovii and V. fluvialis based on morphological
characteristics and biochemical tests. Histopathological studies revealed the presence of occlusion and inclusion bodies of
monodon baculovirus (MBV), hepatopancreatic parvo-like virus (HPV), and white spot syndrome virus (WSSV) in
hepatopancreatic and gill tissues. All the LSS affected shrimps collected during the present study were found infected with
V. harveyi and concurrent infections of other Vibrio species were observed in 40% of the samples. Prevalence of infection
with WSSV, MBV and HPV was less compared to Vibrio infections. Granuloma formation was observed in the affected
tissues due to bacterial invasions. Multiple viral infections in association with Vibrio sp. were also observed in 2% of
LSS affected shrimp.
 
Publisher CMFRI
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/9115/1/Jayasree_117-123.pdf
Loka, Jayasree and Janakiram, P and Geetha, G K and Sivaprasad, B and Veerendrakumar, M (2012) Loose shell syndrome (LSS) of cultured Penaeus monodon - microbiological and histopathological investigations. Indian Journal of Fisheries, 59 (3). pp. 117-123.