Edwardsiellosis in freshwater angelfish (Pterophyllum scalare)

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dc.contributor.authorTurgay, Emre
dc.date.accessioned2021-02-08T17:20:18Z
dc.date.available2021-02-08T17:20:18Z
dc.date.issued2020
dc.description.abstractThe freshwater angelfish (Pterophyllum scalare) with its many varieties is one of the most popular species in the ornamental market. The moribund freshwater angelfish individuals (20-25 g in weight) were sampled from an ornamental fish production facility to determine the cause of mortalities started immediately in fish without any other visible finding except the loss of appetite. The mortality rate in the population was as high as 50% within a week. Bacteriological samples were taken from internal organs for the identification of the causative agent. Hemorrhage in the eyes, loss of scales and skin depigmentation were the most obvious external finding in the moribund fish. Internally; the liver was pale, the spleen was enlarged and the intestinal walls were thinned. According to conventional biochemical and physiological tests and 16S rRNA gene sequencing, all isolated bacteria were identified as Edwardsiella tarda. The antimicrobial susceptibility test performed using the disk diffusion test showed that the E. tarda strains we obtained were sensitive to enrofloxacin, sulfamethoxazole with trimethoprim, furazolidone and flumequine but resistant to ampicillin and tetracycline antibiotics.
dc.format.extent8 pages
dc.identifier.doihttps://doi.org/10.46989/001c.19140
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/63778
dc.relation.ispartofThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectsulfamethoxazole
dc.subjectenrofloxacin
dc.subject16s rrna
dc.subjectampicillin
dc.subjectantibiotics
dc.subjecttetracycline
dc.subjectpterophyllum scalare
dc.subjectangelfish
dc.subjectedwardsiella tarda
dc.subjectedwardsiellosis
dc.titleEdwardsiellosis in freshwater angelfish (Pterophyllum scalare)
dc.typeArticle
dc.type.dcmiText
prism.volume72

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Volume 72, 2020