Biochemical Effects of Aqueous and Ethanolic Extracts of Parkia biglobosa Pods on Clarias gariepinus Juveniles

The biochemical effects of aqueous and ethanolic extracts of Parkia biglobosa pods (55, 65, 75, 85 and 95 mg L_1) were investigated in Clarias gariepinus juveniles. The activities of Aspartate aminotransferase and Alanine aminotransferase as well as serum glucose concentrations increased significantly (P<0.05) with increasing concentrations of both extracts. However, there were insignificant changes in Alkaline phosphotase activity including cholesterol and total protein concentrations with increasing concentrations of both extracts even though there were actual variations in their values. It therefore, means that both extracts which elicited strong stress responses in exposed fish are highly hepatotoxic in nature and with the exception of their cholesterol concentrations (P<0.05), there were insignificant differences in the biochemical parameters of exposed fish induced by either extract. It was concluded that both extracts are toxic to exposed fish.