Effect of Parathion on Physio-Biological Aspects of Notopterus notopterus (Pallas, 1769)

Manoj Kumar Ahirwar, Qaiser Jahan Shammi

Abstract


During the present experiment, Notopterus notopterus were exposed to lethal concentration (0.1 ppm) of parathion for a period of 60 min in triplicates. A marked reduction in the opercular beat frequency (90.0 to 30.0) and tail beat frequency (7.3 to 2.0) was observed at the end of 60 min. exposure time. The results on the hematological aspect of the experiment (5 replicas) revealed that significant (P < 0.05) increase in WBC (6.06 to 7.8), and decrease in Hb, RBC, PCV, MCV, MCH, MCHC and other non-specific defence cells. The increase in the WBC count is due to the non-specific immune response of the fish.


Keywords


Parathion; Toxicity; Lethal Dose; Hematology

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