DETERMINATION OF SOME HAEMATOLOGICAL AND NONSPECIFIC IMMUNE PARAMETERS IN NILE TILAPIA (Oreochromis niloticus L., 1758) FED WITH SPIRULINA (Spirulina platensis) ADDED DIETS
In this study, growth performance, haematological and non specific immune system parameters of Nile Tilapia (Oreochromis niloticus L., 1758) fed with diets which contain different levels of (0; 5.0; 7.5 and 10.0 g/kg) spirulina (Spirulina platensis) were investigated. At the end of the feeding experiment (75 days), total erythrocyte (RBC) and leukocyte counts (WBC), hematocrit (Hct), hemoglobin (Hb), leukocyte cell types (monocyte, lymphocyte, neutrophil, eosinophyl), RBC indices (MCV, MCH, MCHC) and phagocytic activity of blood taken from fish were determined in a certain period. According to the results, the addition of 5.0 g/kg spirulina in diet highly increased the phagocytic activity of neutrophils and monocytes and also the addition of 7.5 g/kg of spirulina in diet increased the amounts of RBC and WBC. Consequently, these two levels of spirulina can be used as a protective agent against diseases by supporting the fish immune system.In this study, growth performance, haematological and non specific immune system parameters of Nile Tilapia (Oreochromis niloticus L., 1758) fed with diets which contain different levels of (0; 5.0; 7.5 and 10.0 g/kg) spirulina (Spirulina platensis) were investigated. At the end of the feeding experiment (75 days), total erythrocyte (RBC) and leukocyte counts (WBC), hematocrit (Hct), hemoglobin (Hb), leukocyte cell types (monocyte, lymphocyte, neutrophil, eosinophyl), RBC indices (MCV, MCH, MCHC) and phagocytic activity of blood taken from fish were determined in a certain period. According to the results, the addition of 5.0 g/kg spirulina in diet highly increased the phagocytic activity of neutrophils and monocytes and also the addition of 7.5 g/kg of spirulina in diet increased the amounts of RBC and WBC. Consequently, these two levels of spirulina can be used as a protective agent against diseases by supporting the fish immune system
