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Acinetobacter lwoffii: an Emerging Pathogen for Red Head Disease in Farmed Channel Catfish Ictalurus punctatus

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Title: Acinetobacter lwoffii: an Emerging Pathogen for Red Head Disease in Farmed Channel Catfish Ictalurus punctatus
Authors: Haipeng Cao
Weidong Ye
Shan He
Yi Li
Yibin Yang
Keywords: red head disease
Acinetobacter iwoffi
Ictalurus punctatu
antibiotic susceptibility
LC Subject Headings: Fish culture--Israel.
Fish culture.
Issue Date: 2016
Abstract: Red head disease has become a significant emerging cause of economic damage in the farming of channel catfish Ictalurus punctatus. Only scare information is available on this disease caused by Acinetobacter lwoffii in channel catfish. In this study, a virulent strain, temporarily named R21, was isolated from diseased channel catfish suffering from red head disease, and identified through phylogenetic analysis and phenotypic characteristics. A phylogenetic tree was constructed to examine isolate R21 and compare it to other known isolates. In addition, isolate R21 appears to be resistant to azithromycin, ciprofloxacin, erythromycin, norfloxacin, and oxacillin, but is still susceptible to aminoglycosides, amphenicols, sulfonamides and tetracycline drugs for veterinary uses in aquaculture as revealed when screened against a range of common antibiotics. This study confirms A. lwoffii as an emerging pathogen for red head disease in farmed channel catfish.
Pages/Duration: 8 pages
URI/DOI: http://hdl.handle.net/10524/54971
ISSN: 0792-156X
Appears in Collections:Volume 68, 2016



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