Impacts of Sumithion on Blood Glucose and Some Hematological Parameters in Common Carp

An experiment was conducted to assess the effects of an organophosphorous pesticide sumithion on blood glucose and some hematological parameters in common carp, Cyprinus carpio. The experiment was conducted with three treatments, each having three replications. Treatment one (T1) was used as control (0 ppm) and two concentrations, such as 0.85 ppm and 1.70 ppm were used as Treatment two (T2) and Treatment three (T3), respectively. Fish were sacrificed at 7, 14, and 21 days after start of exposure. The sexual dimorphic changes in blood glucose levels were observed in the present study. In male, the blood glucose levels were significantly (P<0.05) increased with the toxicity of sumithion at 7, 14, and 21 days of exposure periods in higher concentrations (T2 & T3) compared to control (T1), while only tended to increases were observed in female. The Hb (g/dL) tended to decrease with toxicity of sumithion though significantly decreased in males at 7 and 14 days of exposure in T3. The RBCs (×10/mm) were decreased significantly (P<0.05) during the toxicity of sumithion at 7, 14, and 21 days of exposure periods in higher concentrations (T3), whereas Hct (%) showed no significant changes in both concentrations (T2 & T3). On the other hand, WBC were significantly (P<0.05) increased in higher concentrations both in male and female. The present investigation highlighted that sumithion has adverse effects on the metabolism of macromolecules of fish.