عنوان مقاله [English]
The aim of this study was evaluation of Ergosan and anti-streptococcus vaccine effects on hematological factors including hematochrit, hemoglobin, the mean cell hemoglobin (MCH). The mean cell hemoglobin concenteration (MCHC), the mean cell volume (MCV), total RBC, total WBC, and diff which took place in one of fish culture farms located in a small city, Neka, in Mazandaran province in 2005. The selected fish were 5-8 grams and were divided to 4 groups including: control, vaccine, vaccine+Ergosan and Ergosan. Each group was included 3000 fish. At the end of the experimental period which took about four months, blood samples were gathered from all treatments and hematological factors were evaluated. Data analyzed through one way ANOVA, Duncan test, and Tukey. The result indicated that statistically, there was no difference among treatments considering parameters such as total RBC, hematochrit, hemoglobin, MCV, MCH, and MCHC. There was an increase in the total WBC which was not that significant in comparison with the control group. A significant difference was seen in the number of lymphocytes in experimental & control groups. The number in control group was 82% while in vaccine group it came to 98%, in Ergosan 96%, and in vaccine+Ergosan it was 95%. According to the result, it seems prescribing the vaccine and Ergosan will be stimulating for proliferation of white blood cells specially lymphocytes. Therefore, it will play an effective role in increasing fish resistance against environmental stress & pathogens.
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