Description:
<jats:p xml:lang="en">
In this study, the
bacteriological examination was done in case of disease suspect of rainbow
trout (Oncorhynchus mykiss) which kept in cages in the Black Sea Region of
Turkey. The bacterial agent was identified as Citrobacter braakii by rapid test
kit (API 20E, Profile: 1704553), further identification was performed by 16S
rRNA gene sequencing. Bacteria were identified as Citrobacter freundii by
further molecular analysis. The antibacterial susceptibility of bacteria was
also determined for 6 different antibiotics. The bacteria was sensitive to
florfenicol, enrofloxacin, oxytetracycline and trimethoprim+sulfamethoxazole
and resistant to erythromycin and amoxicillin-clavulanate. The most effective
antibiotic was florfenicol. The disease was treated with florfenicol.</jats:p>