Effect Of Crude Oil And Its Products On Bilirubin Of African Catfish <i>Clarias gariepinus</i>

Abstract

The study was aimed at determining the effect of Crude oil and its product on bilirubin of a CatfishFishes wth an average weight of 21.08 ± 0.12g were subjected to the toxic and recovery phases odferent concentratons ( 0.2 ml/L, 0.4 ml/L, 2.0 ml/L. and 4 ml/L ) of Crude oil, desel, kerosene and petrol for 4 days and 26 days respectively. The bilirubin level of fishessubjected to different concentrations of toxicants was higher than that of the control. The biochemical parameters investigatedshowed signicant (P < O05) difference when compared to the control. The bilirubinlevel increased wth increasing concentrations of toxicants. Increased bilirubin level suggests lver cell damage or a metabolic disturbance in the liver involving defective conjugation and / or excretion of bilirubin.

Keywords: Crude oil concentration, Clarias gariepinus, Bilirubin, Toxicity, Recovery

Animal Research International Vol. 3 (3) 2006 pp. 531-533