effects of zataria multiflora boiss and mentha pulegium lextracts on phagocytosis, lysozyme, respiratory burst and blood cells of rainbow trout (oncorhynchus mykiss walbaum)

نویسندگان

پریا اکبری

دانشکده علوم دریایی، گروه شیلات، دانشگاه دریانوردی و علوم دریایی چابهار، چابهار- ایران محبوبه قرقانی

دانشکده زیست شناسی ، دانشگاه پیام نور اصفهان محمد سعید فریدونی

واحد بهداشت و بیماریهای آبزیان، دانشکده دامپزشکی شیراز، دانشگاه شیراز، شیراز- ایران

چکیده

background: enhancement of the immune system seems to be the most promising method of preventing fish diseases and increasing growth rate. objectives: the purpose of the present study was to investigate the influence of dietary administration of zataria multiflora boiss and menthapulegium l extracts on phagocytosis, lysozyme, respiratory burst and total white and red blood cells (wbc/rbc) of rainbow trout (oncorhynchus mykiss). methods: two hundred and ten fish (100±10 g) were used in a completely randomized design with 7 treatment and 3 replicates in a 2 weeks period (from 0 to 14 d). the basal diet supplemented with 0 (control), 20, 50 and 100 mg/kg food z. multiflora and m.pulegium extracts. at the end of the experiment (after 14 days), samples from kidney and blood of the fish were collected in order to determine wbc/rbc (by neubauer chamber), serum lysozyme activity (by turbid metric assay, phagocytosic (by number of yeast cells phagocytosed method) and respiratory burst activities (by reduction of nitroblue tetrazolium method) of head kidney tissue. results: the results indicated that the highest ratio of phagocytosis and respiratory burst activity was observed in 50 mg/kg extract concentration of z. multiflora (p0.05). the highest ratio of phagocytosis activity was observed in 100 mg/kg extract concentration of m. pulegium (p0.05). conclusions: it can be concluded that 50 and 100 mg/ kg of the methanol z. multiflora and 100 mg/ kg m. pulegium have positive effects on stimulating of innate immune system in o.mykiss, but the influence of z. multiflora extract with100 mg/ kg  concentration is  better than  m. pulegium extract.

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عنوان ژورنال:
تحقیقات دامپزشکی

جلد ۷۰، شماره ۴، صفحات ۴۴۷-۴۵۴

کلمات کلیدی
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