ABSTRACT: The bacteria Aeromonassp. are naturally reported in aquatic ecosystems and possess pathogenic potential, being considered as emerging pathogens humans animals. They also cause considerable losses fish farming and, through water, can contaminate numerous foods. This study quantified analyzed the antimicrobial resistance profile of fish. A total 72 samples two varieties (leather fish, P...

lactococcus garvieae is the etiological agent of lactococcosis, an emerging disease which affects several fish species and causes important economic losses both in marine and freshwater aquaculture. lactococcosis usually happens when water temperature increases over 15°c during the year. normally, it causes a hyperacute and haemorrhagic septicemia in fish. this paper presents a procedure for pr...

Laboratory-reared pathogen-free Pacific herring were exposed to pure cultures of Ichthyophonus hoferi, and reproduced the disease seen in naturally infected fish--thus fulfilling Koch's Postulates. Pathogen-free herring used in this study were reared from artificially spawned eggs incubated in filtered, UV-sterilized seawater, eliminating the variables associated with multiple infections, which...

Flavobacterium columnare is a bacterial pathogen causing high mortality rates for many freshwater fish species. Fish vaccination with a safe and effective vaccine is a potential approach for prevention and control of fish disease. Here, in order to produce bacterial ghost vaccine, a specific Flavobacterium lysis plasmid pBV-E-cat was constructed by cloning PhiX174 lysis gene E and the cat gene ...

Vibrio anguillarum is a pathogen that causes high mortality in marine and freshwater fish. The aim of this study was to develop a real-time PCR assay for identification and quantification of V. anguillarum in fish tissue. The assay was carried out using two target genes, 16SrDNA and toxR, to evaluate the influence of differences in the operon copy number in quantitative assessment, both in pure...