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TÜRKİYE’DE GENÇ KÜLTÜR RUS MERSİN BALIKLARINDA (Acipencer gueldenstaedtii) GÖRÜLEN BAKTERİYEL HEMORAJİK SEPTİSEMİ ÜZERİNDE BİR ÇALISMA

A STUDY ON BACTERIAL HAEMORRHAGIC SEPTICEMIA IN FARMED YOUNG RUSSIAN STURGEON IN TURKEY (Acipencer gueldenstaedtii)

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Abstract (2. Language): 
Bacterial haemorrhagic septicemia outbreaks occurred in young farmed Russian sturgeon (Acipencer gueldenstaedtii) in 2002-2003 associated with Aeromonas hydrophila alone or mixed infection with Flavobacterium hydatis. These bacteria induced low mortalities among the fish reared in concrete ponds at Sapanca Freshwater Fish Culture and Research Station, Istanbul University, Fisheries Faculty. Clinically, affected fish, 1-2 years old (100-380 g in weight) showed haemorrhages on the skin of ventral side of head, at the base of fins and around ganoid scales. Affected fish gills generally were congested, haemorrhagic and necrotic. Some affected fish gill filaments showed epithelial cell hyperplasia, necrosis and sloughed of the necrotics cells.
Abstract (Original Language): 
İstanbul Üniversitesi Su Ürünleri Fakültesi Sapanca İçsu Balıkları Üretim ve Arastırma İstasyonu’nda beton havuzlarda yetistiriciliği yapılan genç Rus mersin balıklarında (Acipencer gueldenstaedtii) 2002-2003 yıllarında Aeromonas hydrophila tek basına veya Flavobacterium hydatis ile karma enfeksiyon seklinde bakteriyel hemorajik septisemi olusturarak balıklarda düsük mortaliteye neden olmustur. Klinik olarak hasta balıklarda (100-380gr) deri renginde koyulasma, yüzgeç diplerinde ve ganoid pulların çevresinde hemorajiler görülmüstür. İç organlarda hiperemi ve hemoraji yaygın bir sekilde görülürken solungaçların genellikle hiperemik, hemorajik ve nekrotik olduğu tespit edilmistir. Bazı hasta balıkların solungaç filamentlerinde epitelyal hücre hiperplazisi, nekroz ve nekrotik hücrelerde dökülme görülmüstür.
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