Isolation and determination of Vibrio spp. pathogen from hemorrhagic disease in Sciaenops ocellatus in cage culture
Abstract In this study, 18 strains of Vibrio bacteria were identified from 27 samples of Red drum fish (Sciaenops ocellatus) suffering from the haemorrhagic disease from cage culture in Vietnam. The bacterial strains were identified with the 16S rRNA sequencing method and checked for morphological, physiological, and biochemical characteristics by using the API 20E KIT. Twelve strains of V. alginolyticus, three strains of V. fluvialis, and three strains of V. orientalis were recorded. All Vibrio strains have gene similarities with those on the gene bank ranging from 98 to 100%. The biochemical characteristics of these 18 isolates were similar. These bacteria are susceptible to tetracycline and doxycycline and entirely resistant to ampicillin, amoxicillin, and erythromycin.