Hematological variables were significantly affected
by protein level, fish weight, and their interaction except for serum lipids which was not significantly
affected by the interaction. Activities of aspartate amninotransferase (AST) and alanine aminotransferase
(ALT) in serum, liver, and muscles were significantly affected by dietary protein level and fish weight. The
interaction significantly affected enzyme activities except for serum AST, which was not significant