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Edwardsiellosis in freshwater angelfish (Pterophyllum scalare)

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Item Summary Turgay, Emre 2021-02-08T17:20:18Z 2021-02-08T17:20:18Z 2020
dc.identifier.issn 0792-156X
dc.description.abstract The 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.extent 8 pages
dc.relation.ispartof The Israeli Journal of Aquaculture - Bamidgeh
dc.subject sulfamethoxazole
dc.subject enrofloxacin
dc.subject 16s rrna
dc.subject ampicillin
dc.subject antibiotics
dc.subject tetracycline
dc.subject pterophyllum scalare
dc.subject angelfish
dc.subject edwardsiella tarda
dc.subject edwardsiellosis
dc.title Edwardsiellosis in freshwater angelfish (Pterophyllum scalare)
dc.type Article
dc.type.dcmi Text
prism.volume 72
Appears in Collections: Volume 72, 2020

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