The effect of different levels of Fe (So4)2 (7H2O(and probiotics)BioPlus-2B(on some blood parameters of Rutilus frisii kutum fry

In this study the effect of iron of Fe (So4) 2 (7H2O(and probiotics BioPlus 2B on some blood parameters was investigated on 270 of Rutilus frisii kutum fry with total weight of 0. 4±0. 1 gr and total length of 3. 9±0. 3 cm in nine treatments and triplicates during 60 days. Results showed that the highest number of red blood cells (RBCs) (1. 65×106± 1. 55 per mm3)، hemoglobin concentration (7. 36±0. 15 g/dl)، hematocrit concentration (24. 03±0. 85 %)، MCV (1. 45±1. 48 Fl)، MCH (46. 29±0. 25 pg) and lymphocyte (92±2) belong to treatment 5. The highest level of MCHC (34. 65±0. 67 g/dl) and the greatest level of white blood cells (6. 6±100 per mm3) were observed in treatments 4 and 8، respectively. The findings of this research showed that treatment 5 contained the highest amount of iron (7 mg/kg of feed) and probiotics (CFC 1. 6×109) resulted in the highest amount of red blood cells، hemoglobin، hematocrit، MCV، MCH and lymphocytes in this study.