DETECTION OF BACTERIAL DISEASES AND DETERMINATION OF ANTIBACTERIAL SUSCEPTIBILITIES OF RAINBOW TROUT (Oncorhynchus mykiss Walbaum, 1792) IN TURKEY/Türkiye'de Gökkusagi Alabaligi (Oncorhynchus mykiss Walbaum, 1792)'nda Görülen Bakteriyel Hastaliklarin Tespiti ve Antibiyotik Duyarliliklarinin Belirlenmesi

In this study, the bacterial pathogen agents of cultivated rainbow trout (Oncorhynchus mykiss Walbaum) in Turkey were investigated. Pathogens from 692 samples belonging to 20 rainbow trout populations from different localities of Turkey were isolated between 2005 and 2008. 11 different bacterial pathogens were identified: Acinetobacter sp., Aeromonas hydrophila, Aeromonas sobria, Citrobacter freundii, Flavobacterium psychrophil um, Lactococcus ganleae. Micrococcus luteus, Streptococcus iniae, Vibrio alginolyticus, Vibrio anguillarum, and Yersinia ruckeri. The most frequently isolated pathogen was Yersinia ruckeri. Disc diffusion method was used to determine antimicrobial susceptibility to several antibiotics. The isolates were found to be susceptible to enfrofloxacin, oxytetracycline and florfenicol. [PUBLICATION ABSTRACT]