Occurrence of antimicrobial resistance in fish-pathogenic and environmental bacteria associated with four Danish rainbow trout farms

Article Abstract:

Researchers found decreased susceptibility to five antimicrobial agents among the microorganisms present in fish, water, and soil samples from four freshwater fish farms in western Denmark. The drugs analyzed were oxolinic acid, sulfadiazine-trimethoprim, amoxicillin, oxytetracycline, and florfenicol, which are all used to treat bacterial infections in fish.

Denmark, Bacteria, Pathogenic, Pathogenic bacteria, Fish hatcheries

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Incidence, distribution, and spread of tetracycline resistance determinants and integron-associated antibiotic resistance genes among motile aeromonads from a fish farming environment

Article Abstract:

Plasmids are not the only means of transferring genes for antibiotic resistance between bacteria. In a study of 313 aeromonads isolated from rainbow trout, genes for drug resistance were found among isolates with and without plasmids.

Transduction, Transduction (Genetics)

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Vibrio damsela associated with diseased fish in Denmark

Article Abstract:

Microbiological research shows that the pathogenic microorganism Vibrio damsela is directly involved in fish disease. Genotypic and phenotypic features from twenty-six V. damsela isolates from various fish sources in Denmark have been compared. Seventeen ribotype patterns from a total 31 strains of V. damsela isolates are shown. Evidence suggests that salmonid fish may become infected with V. damsela.

Diseases, Fishes, Vibrio infections

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