Abstract
The effects of exposing Heterobranchus bidorsalis juveniles (14.08 ± 0.12 g) to diferent concentrations of Bonny-light crude oil (BLCO) on amylase and cretinine kinase activities were studied The exposure of the fsh to 1.00, 2.00, 400, 8.00 ml L-1 BLCO and a control for 4 days toxicity period indicated that the signiicant increases (P < 0.01) in the serum amylase (SRA) and the hepatic cytosolic amylase (HCA) activities in the fish were BLCO concentrations dependent. Reduced SRA and HCA activities noticed within the first 14 days o the recovery period implied thatthe removal o the oil polutant from the ambient water chemistry probably lowered the pressure on the blood serum and liver amylase enzyme to catalyse the metabolism o the ingesed carbohydrates. Signicant increases (P < 0.05) in the serum cretinine kinase (SRCK) and the hepatic cytosolic cretinine kinase (HCCK) activities in the fish also followed the pattern shown by the SRA and the HCA activities. The increased SRA, HCA, SRCK and HCCK activities in the blood serum and liver of the fish were indications o a shit in the carbohydrate metabolism due to crudeoil exposure. Keywords: Heterobranchus bidorsalis, Bonny-light crude oil, Serum, Cytosolic, Amylase, Cretinine kinase.Animal Research International Vol. 3 (3) 2006 pp. 516-520
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