Abstract:
The present study was aimed to evaluate the effects of acute dose of Cypermethrin (CYP), an extensively use synthetic pyrethroid, on hematology and morphology of the liver, gills and brain of Mahseer (Tor putitora). The effects were assessed on the basis of the previous results of acute toxicity test after exposing fish to acute concentration, 63 µg L-1 (LC50 of 96 h) of CYP. Light microscopic studies revealed severe histopathological changes in liver, gills and brain tissues. The morphological alterations in liver involved glycogen vacuolation, hemorrhage vacuolation, congestion, fatty infiltration and hepatic necrosis. In gills, it resulted in cellular infiltration, congestion, swollen tip of the gill filament, hetrophilic infiltration and damaged gill while in the brain it caused discoloration, neuronal degeneration, infiltration and severe spongiosis. Blood cell count also showed the toxic effect of CYP, as RBCs count decreased while WBCs count increased with time in the treated group. The results clearly classify CYP as a strong toxic agent for T. putitora.
Page(s):
199-204
DOI:
DOI not available
Published:
Journal: International Journal of Agriculture and Biology, Volume: 17, Issue: 1, Year: 2015