Viability of taura syndrome virus in low-salinity water

Taura syndrome virus (TSV) could survive up to 10 days in water at the salinity of 5-10 parts per thousand (ppt) and could infect Pacific white shrimp, causing mortalities. Histopathological investigations of TSV-infected shrimp showed necrosis of the cuticular epithelium, marked by nuclear pyknosis...

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Published inWitthayāsān Kasētsārt. Sākhā thammācht
Main Authors Niti Chuchird(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Fisheries. Dept. of Fishery Biology), Chalor Limsuwan(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Fisheries. Dept. of Fishery Biology)
Format Journal Article
LanguageEnglish
Published 01.07.2005
Subjects
Disease control
Histopathology
Mortality
Penaeus vannamei
Salinity
Symptoms
Taura syndrome virus
Viroses
Viruses
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Summary:Taura syndrome virus (TSV) could survive up to 10 days in water at the salinity of 5-10 parts per thousand (ppt) and could infect Pacific white shrimp, causing mortalities. Histopathological investigations of TSV-infected shrimp showed necrosis of the cuticular epithelium, marked by nuclear pyknosis and karyorrhexis. Basophilic cytoplasmic inclusion bodies could be seen in the cuticular epithelium of the shrimp's body, appendages, gills, esophagus, stomach, hindgut and rarely in the epithelium of antennal gland, giving them the characteristic peppered or buckshot appearance. The studied results indicated that shrimp farmers should eliminate all carriers of TSV, such as shrimp and crabs from the rearing ponds and allow water to sustain for at least 15 days before releasing shrimp into the pond.
Bibliography:TAB000125492180
http://www.rdi.ku.ac.th
L73
ISSN:0075-5192