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International Journal of Fisheries and Aquatic Studies
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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2017, Vol. 5, Issue 2, Part F

Histopathological changes due to induced biopesticide Kethrin in the liver of freshwater fish, Labeo rohita (Hamilton)


Author(s): Imtiyaz Ahmad Bhat

Abstract: The liver of Labeo rohita was histopathologically examined after acute exposure (4 days) and chronic exposure (30 days) of two sublethal concentrations (1/15th and 1/10th of 96h LC50 values) of Kethrin. After the acute exposure of 1/15th (1.445ppm) and 1/10th (=2.168ppm) of 96hr LC50 value of Kethrin to L. rohita for 4 days, histopathological changes observed includes severe necrosis, cloudy swelling of hepatocytes and disintegration of liver lobules. After the chronic exposure of 1/15th of LC50 (1.445ppm) and 1/10th (=2.168ppm) of LC50 value of Kethrin to L. rohita for 30 days, histopathological changes observed includes necrosis, cloudy swelling, hyperplasia, coagulation of blood vessel, lifting up of epithelium and infiltration of lymphocytes. The histopathological damage in the liver was found to be severe in case of chronic exposure as compared to the acute exposure of Kethrin. The results indicate that even the sublethal concentrations of Kethrin were enough to elicit significant changes in the liver histology of L. rohita and further suggest that even smaller concentrations of any toxicant in the environment can induce major histological changes and more care and vigil is needed before using such biopesticides into agricultural fields or near fish farms.

Pages: 412-415  |  550 Views  31 Downloads

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How to cite this article:
Imtiyaz Ahmad Bhat. Histopathological changes due to induced biopesticide Kethrin in the liver of freshwater fish, Labeo rohita (Hamilton). Int J Fish Aquat Stud 2017;5(2):412-415.
International Journal of Fisheries and Aquatic Studies