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Title: Pathogenicity and <span style="mso-bidi-font-weight:bold">antibiotic susceptibility of <i style="mso-bidi-font-style:normal">Vibrio</i> species isolated from the captive–reared tropical marine ornamental blue damsel fish, <i style="mso-bidi-font-style: normal">Pomacentrus caeruleus</i> (Quoy and Gaimard, 1825) </span>
Authors: Sonia, G. Annie Selva
Lipton, A. P.
Keywords: Vibrios
Blue damsel fish
Antibiotic sensitivity
Issue Date: Aug-2012
Publisher: NISCAIR-CSIR, India
Abstract: Microbiological assessment of vibriois infected blue damsel,<b style="mso-bidi-font-weight:normal"> </b><i style="mso-bidi-font-style: normal">Pomacentrus caeruleus </i>reared in captivity in marine aquaria led to isolation of five distinct Vibrio species. Cultural, morphological and biochemical characteristics of these isolates identified them as <i>Vibrio alginolyticus</i> (29.4%)<span style="mso-bidi-font-style:italic">, <i>V. vulnificus </i>(26.8%),<i style="mso-bidi-font-style:normal"> V. fluvialis </i>(15.3%), <i style="mso-bidi-font-style:normal">V. pelagius</i> (9.1%) and <i style="mso-bidi-font-style:normal">V. anguillarum </i>(19.4%). <span style="mso-bidi-font-style:italic">Predominant <i>Vibrio alginolyticus</i> and <i>V. vulnificus </i>were tested for pathogenicity and Koch postulate by experimentally infecting apparently healthy blue damsels, <i style="mso-bidi-font-style:normal">P. caeruleus</i>. The lethal dose (LD<sub>50</sub>) was 1.36×10<sup>6</sup> and 3.44×10<sup>6</sup> CFU/g fish (colony forming units) for <i style="mso-bidi-font-style:normal">V. alginolyticus</i> and <i style="mso-bidi-font-style:normal">V. vulnificus </i>respectively. All the vibrios were highly susceptible to the broad spectrum antibiotics Chloramphenicol (30 μg/disc), Erythromycin (15 μg/disc), Gentamycin (30 μg/disc) and Oxytetracycline (30 μg/disc). </span></span>
Description: 348-354
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.41(4) [August 2012]

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