عنوان مقاله [English]
Use herbs as ingredients to stimulate and strengthen the immune system of fish in recent years was considered. Therefore, in this study, the effects of milk thistle seed powder (Silybum mariamum) The immune system and blood biochemical factors fry fish (Abramis brama oriental) were investigated. For this purpose, in 2014 this experiment was done on Abramis brama orientalis fry (initial mean weight 10-12Mg) for 60 days to three levels of dietary S. marianum containing 100, 400 and 800 Mgr, in the form of 4 treatments with 3 replications which a treatment had as a control group(without affecting the S. marianum). To test the hypotheses, one-way variance analysis was used. The results showed that the extract of S. marianum Increase WBC, Hematocrit, Neutrophils, Monocytes, Lysosomal,Igm and also reduce aspartate aminotransferase (AST), alanine aminotransferase(ALT), alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) in the groups treated with 400 and 800 mg compared to control group is effective in strengthening the immune system and has significantly different (P<0.05). Also, due to the Premier 800mg treatment, as compared with other treatments, using doses of diets to enhance safety Abramis braba orientalis fry is suggested.