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Action of selected antibiotics on four common bacteria associated with diseases of fish
Author(s) -
NUSBAUM K. E.,
SHOTTS E. B.
Publication year - 1981
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1111/j.1365-2761.1981.tb01149.x
Subject(s) - aeromonas salmonicida , oxytetracycline , microbiology and biotechnology , biology , pseudomonas fluorescens , aeromonas hydrophila , minimum inhibitory concentration , erythromycin , chloramphenicol , antibiotics , minimum bactericidal concentration , colistin , penicillin , bacteria , genetics
. Four bacteria commonly associated with diseases of fish ( Aeromonas hydrophila complex, Aeromonas salmonicida, Flexibacter columnaris ‐like organisms and Pseudomonas fluorescens ) were evaluated in a serial dilution system for susceptibility to four antibiotics commonly used in the treatment of bacterial fish diseases (chloramphenicol, erythromycin, furpyrinol and oxytetracycline). Findings were expressed as minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Furpyrinol was found to have the lowest MIC and MBC against A. hydrophila complex, A. salmonicida and F. columnaris‐like organisms. MIC and MBC's for oxytetracycline were complicated by the presenceof R‐plasmids, but were less than 4.0 mcg/ml for those without plasmids. Pseudomonas fluorescens was susceptible only to oxytetracycline. MIC for all groups of organisms using chloramphenicol was generally less than 16.0 mcg/ml. Susceptibility to erythromycin by these groups of organisms was greater than 16 mcg/ml.