تأثير پلي ويتام بر شاخص‏هاي رشد و فاكتورهاي خوني بچه تاسماهيان ايراني (Acipenser persicus Borodin, 1897)

Effect of Polyvitam on growth and hematological factors of Persian sturgeon (Acipenser persicus Borodin, 1897) finger lings

The important factors in sturgeon successful commercial culture are preparing artificial food with suitable quality, method and balance of food ration and fish accumulation in ponds which all of this cases more various by fish age and water temperature. Food quality considerably affects on the characteristics of blood morphology and hemoglobin qualitative and quantitative characteristics of younger sturgeons. The amounts of blood indicator are increased on the inappropriate situations in the cases such as food availability enough dissolved oxygen and health control. The purpose of this research has been analyzing the growth and blood factors of feeding treatments in different levels of Polyvitam and comparing this factor of each treatment by adding this vitamin solution. In this research, the effects of adding the Polyvitam on the blood factors of Persian sturgeon finger lings have been analyzed in summer 1387 in Shahid Beheshti Propagation and Culture of Sturgeon. Four-hundred and fifty numbers of Persian sturgeon by average weight (3.70±0.74) gr and average length (9.69±0.85) cm have been cultured in three treatments (Polyvitam 2%, Polyvitam 5% and control group) applies by 3 replicates. After than 10 days biometry growth factors calculated in each treatments. At the end of 60 days of feeding period, preparing blood sample from each treatment of caudal vein then assessment blood factors.The results of growth factors has shown that there are no statistical significant differences between treatments according to total weight and length, Growth Rate, Specific Growth Rate, Body Weight Index, Food Efficiency, Condition Factor and Protein Effeciency Ratio. These factors are in control treatment higher than Polyvitam treatments. Although Feed Conversion Ratio is in treatment diet contained by 2%Polyvitam was significantly higher than other treatments.The results have shown that there are no statistical significant differences between treatment of Polyvitam in W.B.C., Neutrophil, Lymphocyte, R.B.C., Hb and Hct.