Abstract :
Wallago attu was exposed to five different concentrations of cypermethrin for 30 days and
found a remarkable change in haemoglobin, TLC, PCV and TEC values. A surging rise was noticed in
all the four parameters on exposure to the different concentration of cypermethrin on day 1 but there
was a slight reduction in the haemoglobin content, PCV and TEC with a slight rise in TLC after few
days. Wallago attu exposed to cypermethrin showed an increase in blood glucose level.
Cypermethrin has potent piscicidal activity against Wallago attu and adversely affects.
Keyword :
Cypermethrin, Haematology, Pesticides, Wallago attu.