Effect of dietary supplementation Spirulina platensis on blood, immunological and serum biochemical parameters of Benny fish Mesopotamichthys sharpeyi (Günther, 1874)

Effect of different levels of spirulina dietary supplementation on some blood-immune parameters and serum biochemical parameters of Benny Mesopotamichthys sharpeyi fingerlings were investigated in an 8 weeks experimental period. Dried and powdered spirulina algae in five levels of 0، 2. 5، 5. 0، 7. 5 and 10. 0 % was added to the experimental diet. Experimental fish were fed to satiation twice daily. Haemato-immunological and blood serum biochemical parameters were higher in benny fish receiving diet with 10% spirulina compared to fish being fed diet with 0% of spirulina. Haematological parameters and blood serum biochemical parameters including haemoglobin concentration، haematocrit، total protein، total albumin، total globulin and albumin/globulin ratio were not significantly (P>0. 05) affected by spirulina supplementation. However، lysozyme activity levels in 10% treatment were higher and showed a significant difference (P<0. 05) from control treatment. The results revealed that spirulina supplementation at 10% level leads to improve haemato-immunological and serum biochemical parameters of benny fish.