Study on some blood serum electrolytes and enzymes in cultured fishes: benni (Barbus sharpeyi) and grass carp (Ctenopharyngodon idella) in Kkuzestan province

  Abstract:   In order to determine some blood serum electrolytes and enzymes in benni (Barbus sharpeyi) and grass carp (Ctenopharyngodon idella) cultured in ponds at the Azadegan culturing center in Khuzestan province, Ahvaz, Iran. Blood samples were collected from caudul vein of 121 male (61) and female (60) mature benni and 126 male (71) and female (55) grass carp. Blood serum enzymes and phosphorus were measured by automatic analyser with laboratory routine methods. Sodium and potassium were determined by flame photometry method and calcium and chloride were measured by manual with colorimetric orto – cresolphthalein and thiocyanate methods respectively. In this study the overall mean of AST, ALT, ALP, LDH, sodium, potassium, chloride, calcium and phosphorus in benni were 277.5 ± 10.3, 49.9 ± 2.9, 51.2 ± 2.5, 356.4 ± 32.5 U/L, 140.3 ± 0.8, 2.1 ± 0.1 and 96.4 ± 13 mmol/l, 10.2 ± 0.2 and 15.8 ± 0.4 mg/dl respectively and in grass carp were 116.1 ± 9.9, 19.6 ± 2.1, 135 ± 5.5, 342.2 ± 24.9 U/L, 140.3 ± 0.7, 1.7 ± 0.06, 89.5 ± 1.3 mmol/l, 9.5 ± 0.1 and 13.6 ± 0.5 mg/dl respectively. Statistical analysis showed that in grass carp ALP was higher than the benni and the overall mean of calcium, phosphorus, potassium, chloride, AST, ALT and LDH in benni were higher than the grass carp (P