Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)

Clarias gariepinus fingerlings exposed to lethal and sublethal concentrations of Gammalin 20 were investigated in a renewal static bioassay with particular reference to behaviour, survival, and histopathological changes. Early symptoms of gammalin 20 lethal poisoning were, respiratory distress, incr...

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Main Authors: Lawrence Ezemonye, Temiotan Emmanuel Ogbomida
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:Applied and Environmental Soil Science
Online Access:http://dx.doi.org/10.1155/2010/138019
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author Lawrence Ezemonye
Temiotan Emmanuel Ogbomida
author_facet Lawrence Ezemonye
Temiotan Emmanuel Ogbomida
author_sort Lawrence Ezemonye
collection DOAJ
description Clarias gariepinus fingerlings exposed to lethal and sublethal concentrations of Gammalin 20 were investigated in a renewal static bioassay with particular reference to behaviour, survival, and histopathological changes. Early symptoms of gammalin 20 lethal poisoning were, respiratory distress, increased physical activity, convulsions, erratic swimming, loss of equilibrium, and increased breathing activity. Behavioural response was dose dependent and decreased with decreased concentration. The 96-hour lethal concentration (LC50) value was 30 ppb. Histopathological changes of the gill, liver, and intestinal tissues of fish treated with sublethal concentration of gammalin 20 for twelve weeks showed gill distortion and fusion of adjacent secondary lamella as a result of hyperplasia and excessive mucus accumulation. The liver showed swelling of hepatocytes with mild necrosis, pyknosis, and vacuolation, while the intestine showed yellow bodies of the lamina propria at the tip of the mucosal fold.
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spelling doaj-art-f4dfec0b1bdc489b8ca88d4f0d605fd02025-02-03T05:47:21ZengWileyApplied and Environmental Soil Science1687-76671687-76752010-01-01201010.1155/2010/138019138019Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)Lawrence Ezemonye0Temiotan Emmanuel Ogbomida1Department of Animal and Environmental Biology, Faculty of Life Science, University of Benin, P.M.B 1154 Benin City, Edo State, NigeriaDepartment of Environmental Forensic and Ecotoxicology, National Centre for Energy and Environment, Energy Commission of Nigeria, University of Benin, P.M.B 1154 Benin City, Edo State, NigeriaClarias gariepinus fingerlings exposed to lethal and sublethal concentrations of Gammalin 20 were investigated in a renewal static bioassay with particular reference to behaviour, survival, and histopathological changes. Early symptoms of gammalin 20 lethal poisoning were, respiratory distress, increased physical activity, convulsions, erratic swimming, loss of equilibrium, and increased breathing activity. Behavioural response was dose dependent and decreased with decreased concentration. The 96-hour lethal concentration (LC50) value was 30 ppb. Histopathological changes of the gill, liver, and intestinal tissues of fish treated with sublethal concentration of gammalin 20 for twelve weeks showed gill distortion and fusion of adjacent secondary lamella as a result of hyperplasia and excessive mucus accumulation. The liver showed swelling of hepatocytes with mild necrosis, pyknosis, and vacuolation, while the intestine showed yellow bodies of the lamina propria at the tip of the mucosal fold.http://dx.doi.org/10.1155/2010/138019
spellingShingle Lawrence Ezemonye
Temiotan Emmanuel Ogbomida
Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)
Applied and Environmental Soil Science
title Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)
title_full Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)
title_fullStr Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)
title_full_unstemmed Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)
title_short Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)
title_sort histopathological effects of gammalin 20 on african catfish clarias gariepinus
url http://dx.doi.org/10.1155/2010/138019
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