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International Journal of Aquatic Biology، جلد ۱، شماره ۳، صفحات ۱۱۹-۰
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عنوان انگلیسی Antibacterial effects of medicinal plant extracts against Lactococcus garvieae, the etiological agent of rainbow trout lactococcosis
چکیده انگلیسی مقاله Eight medicinal plants were assessed for antimicrobial activity against Lactococcus garvieae isolate obtained from diseased Oncorhynchus mykiss collected from rainbow trout fish farms in Iran. Lactococcus garvieae is among the major pathogens of a large number of fish species cultured in fresh and marine recirculating and net pen production systems. The antibacterial activity of the medicinal plants against L. garvieae was evaluated using disc diffusion, well diffusion and minimum inhibitory concentration. Results showed that the extracts and essential oils had a relatively high antibacterial activity against L. garvieae . Of the plants studied, the most active extracts were those from the methanol extract of Peganum harmala , the essential oil of Satureja bachtiarica , the ethanol extract of Juglans regia and Trachyspermum copticum with minimum inhibitory concentration (MIC) of 105, 126, 510 and 453 μg/ml, respectively. Conversly, some of the extracts such as Quercus branti Lindley and Glycyrrhiza glabra L . had lower activity against L. garvieae with MIC values of 978 and 920 μg/ml respectively. Plant extracts as natural and environment- friendly compounds can be an important source of antibacterial agents against L. garvieae . They may be used for disinfection of instruments and rainbow trout raceways or treatment of the fish.
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نویسندگان مقاله محمد سعید فریدونی | mohammad saeid fereidouni
aquatic animal health unit, school of veterinary medicine, shiraz university, shiraz, iran.

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

مصطفی اخلاقی | mostafa akhlaghi


علی اصغر خادم الحسینی | aliasghar khadem alhosseini


نشانی اینترنتی http://npajournals.com/ijab/index.php/ijab/article/view/23
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