Enzymes Activities in Two Sizes of Clarias. Gariepinus Exposed to on Farm Stress

The enzyme activities in the plasma of C. gariepinus juveniles and adults subjected to handling stress in the laboratory was carried out. Blood samples were collected from the fish and analyzed with standard methods. Results obtained indicate that Alkaline phosphatase (ALP) and Alanine transaminase (ALT), and Aspartate transaminase (AST) were significantly elevated (P<0.05) in all the handling procedures under consideration. These alterations were more pronounced in the fish exposed to starvation and sorting. An indication that fish exposed to these handling activities were more stressed than fish in procedures.