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:: دوره 15، شماره 2 - ( 1395 ) ::
جلد 15 شماره 2 صفحات 845-836 برگشت به فهرست نسخه ها
Molecular identification of some causative agents of warm-water streptococcosis by M-PCR in cultured rainbow trout, Chaharmahal - Bakhtiari Province, Iran
چکیده:   (5847 مشاهده)

Streptococcosis has been defined as a hemorrhagic septicemia in many fish species especially rainbow trout. This disease causes serious economic losses due to high mortality in fish and the bacteria responsible is also considered as a zoonotic pathogen. The aim of this study was identification of different causative agents of warm water streptococcosis and evaluation of the capsule gene in Lactococcus garvieae isolates collected from rainbow trout in Chaharmahal - Bakhtiari Province, Iran. A total of 430 clinically suspected fish were collected from 43 rainbow trout farms. The samples were analyzed using biochemical methods and multiplex-PCR. The results indicated that samples of 36 fish farms (83.7%) were infected with one of the studied bacteria. The infection by L. garvieae was found to be more than that by other species (30 of 36 farms, 83%). Infection by S. iniae and S. uberis was found in nine and one fish farm, respectively. Presence of virulence genes was studied in L. garvieae isolates by PCR assay. According to the results 34 of 50 isolates (68%) contained the capsule gene. The results revealed high prevalence of virulent L. garvieae in rainbow trout farms which should be considered in preventional policies such as vaccine production and also in public health. 

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نوع مطالعه: پژوهشي | موضوع مقاله: fish disease
انتشار الکترونیک: 1395/2/18
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Raissy M, Sarshoughi M, Moumeni M. Molecular identification of some causative agents of warm-water streptococcosis by M-PCR in cultured rainbow trout, Chaharmahal - Bakhtiari Province, Iran. IJFS 2016; 15 (2) :836-845
URL: http://jifro.ir/article-1-2224-fa.html

Molecular identification of some causative agents of warm-water streptococcosis by M-PCR in cultured rainbow trout, Chaharmahal - Bakhtiari Province, Iran. مجله علوم شیلاتی ایران. 1395; 15 (2) :836-845

URL: http://jifro.ir/article-1-2224-fa.html



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Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.
دوره 15، شماره 2 - ( 1395 ) برگشت به فهرست نسخه ها
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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