EFFECT OF CONTRA/INSECT 500150 E. C PESTICIDE ON THE BIOENERGETIC COMPONEiVTS OF THE OREOCHROMIS SPILURUS FISH

EFFECT OF CONTRA/INSECT 500150 E. C PESTICIDE ON THE

BIOENERGETIC COMPONEiVTS OF THE OREOCHROMIS SPILURUS

FISH

BY
FATMA A. ELNEMAKI
King Abdulla::iz University. Faculty ofScience, Biology Department, Jeddah, Saudi Arabia.
ABSTR4CT
Oreochromis spilurus fish was exposed to the three concentrations
0.015(1), 0.035(2), 0.070(3) mgJ1 of the compound contra/insect 500/50
E. C.pesticide for 24,72,120, and 168 hours. This pesticide contains 50% ofits
weight Chloropyrifos and 5% cypermethrin. While the Chloropyrifos is from
the organophosphorus chemical group, the cypermethrin is from the
pyrethroid group. Results showed general elevations in the serum glucose
levels of the exposed fish as we compared it with the control, except some
cases. The glucose Significantly increased as the exposure time ofthe pesticide
concentration 0.07 mg/l (3) increased With the concentrations 0.015 mg/l (1)
and 0 “35 mg/l (2) the glucose increased at the 72 hours exposure time then
declined at the 120 & 168 hours. The increase of the serum glucose levels
contrasts the decline of the muscle and liver glycogen contents of the exposed
fish in most cases. However, the depletion of both contents in the other cases
indicated that fish tissues processed both glycogenolysis and glycol sis to
overcome the loss ofenergy due to the pesticide induced-hYPoxia.