فهرست مطالب سید محمد صادق رودبارکی

In this study, the effects of cobalt chloride (CoCl2) with two levels of 2 and 4 mg/kg and vitamin C with two levels of 200 and 800 mg/kg diet and their combined levels in 9 treatments and each treatment with 3 repelications on 270 Siberian sturgeon (Acipenser baerii) with an initial average weight of 11.51±0.29 g were evaluated for 12 weeks. Based on the results, the mean final weight and length of the fish in 4 mg/kg CoCl2 were significantly higher than the control group (p<0.05). There was no significant difference in the weight gain, body weight gain and food conversion ratio between the treatments and the control group (p>0.05). The results of blood and biochemical indices showed that the highest number of red and white blood cells was observed in the treatments of 2 mg/kg CoCl2+200 and 800 mg/kg vitamin C, respectively. The highest percentage of neutrophils was observed in 800 mg/kg vitamin C treatment, which showed a significant difference with treatments 2 CoCl2, 800 C+4 CoCl2, 800 C+2 CoCl2, 200 C+4 CoCl2 and control (p<0.05). There was a significant difference in the percentage of lymphocytes in 800 mg/kg vitamin C and 800 mg/kg vitamin C + 2 mg/kg CoCl2 treatments compared to the control group (p<0.05). The lowest percentage of monocytes was in the control group (p<0.05). The highest percentage of eosinophils was found in 800 mg/kg vitamin C and 800 mg/kg vitamin C + 2 mg/kg CoCl2 treatments compared to the control group and other treatments (p<0.05). The highest amount of triglyceride and cholesterol was observed in the concentrations of 200 mg/kg vitamin C+4 mg/kg CoCl2 and 4 mg/kg CoCl2, respectively (p<0.05). The results showed that the use of vitamin C and cobalt chloride separately and in combination in the desired weight range had significant effects on growth parameters during the culture period. The effect of vitamin C on some growth and blood indices was higher compared to cobalt chloride. The positive effects of combined treatments were more than individual treatments in most indices. Finally, the diet containing 200 mg/kg vitamin C+4 mg/kg CoCl2 was considered suitable for growth of juvenile Siberian sturgeon.

The purpose of this study the effect of eucalyptus extract on blood and immune parameters in fish infected with Aeromonas hydrophila after treatment with eucalyptus extract was Created grass carp experimentally infected with Aeromonas hydrophila density 1.5×106 ,1.5×107 ,1.5×108 ,1.2 ×109 (cfu/ml ) The peritoneal cavity of fish was the results indicate that disease in dense 1.5×108 ,1.2 ×109 (cfu/ml ) bacteria have been. Effect of eucalyptus extract concentrations 250 , 410 ,580 ,750 (ppm) baths for a short time (60 minutes) on the grass carp (average weight 25 g) were evaluated over a period of 10 days with 3 replicates. The results of the analysis of blood parameters of the fish that were tested on the basis of one way ANOVA and Duncan test showed that there was a significant difference in the amount of white blood cells, red blood cells, mean corpuscular volume, mean concentration of hemoglobin in the red blood cell, medium concentration Hemoglobin, RBC, neutrophil, Lymphocyte, Fetal blood, with control treatment (p

The purpose of this study was to determine the acute toxicity or 50% lethal concentration within 96 hours (LC50 96 h) of eucalyptus extract on the juvenile grass carp (Ctenopharyngodon idella) and the impact of the extraction on Aeromonas hydrophila. 180 grass carp with an average weight of 5g were distributed randomly in the five treatment groups with eucalyptus concentrations of 2000, 2300, 2600, 3000, 3500 ppm and one control group (with three replications). Lethal concentration of eucalyptus extract using logarithmic was found 2478.56ppm. Histopathological studies of gill and liver that were exposed to lethal concentrations of eucalyptus extracts, showed the lesions consisted of hyperemia and bleeding. The minimum inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of the antimicrobial agent were determined using tube dissolution method. The MIC and MBC of extract of eucalyptus against A. hydrophila were recorded as 0.25mg/mL and 0.5mg/mL, respectively. In conclusion, the extract of eucalyptus can inhibit the growth of A. hydrophila in a culture medium. Due to the adverse effects of antibiotics, they can be used as an alternative to controlling and destroying A. hydrophila.