A FIRST RECORD OF FACKLAMIA HOMINIS ISOLATED FROM COMMON CARP (CYPRINUS CARPIO) CULTIVATED IN FLOATING CAGES AT AL-HILLA RIVER, BABYLON PROVINCE: ANTIBIOTIC RESISTANT AND SUSCEPTIBILITY OF PLANT SPECIES.

This study was carried out to investigate the occurrence of potentially pathogenic species of Gram-positive bacterium in common carp cultivated in floating cages at Al-Hilla river. A total of 144 fishes were collected from fish farms during the period December 2017- November 2018. Bacteria were identified using the VITEK 2 system and selected biochemical tests. Here we report the first fish's case of gills due to F. hominis, found in common carp cultivated in floating cages at Al-Hilla river. Antibiotic susceptibility (17 antimicrobial) was using the VITEK 2 system. Significant sensitive was produced only by Ciprofloxacin, Ertapenem and Levofloxacin, when tested in vitro. The plant species susceptibility test was conducted using disc diffusion method on blood agar. Procedure was based on the standardized disc agar diffusion method for antimicrobial susceptibility tests. After incubation, the diameter of the zone of inhibition was measured to determine the sensitivity of the six plant species extracted with alcohol in four different concentrations (10, 15, 20 and 25%). The potential of plant extracts to inhibit the infection caused by F. hominis, all plants inhibited the growth of F. hominis (pd" 0.01) in the highest concentration (25%), ginseng (P. ginseng) appeared to be the most effective, whereas olive leaves (O. europaea) was the least effective. The farm owners should be concerned about the presence of these pathogenic bacteria which also contributes to human health risk and should adopt best management practices for responsible aquaculture to ensure the quality of fish. [ABSTRACT FROM AUTHOR]