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Citation

Orozova P, Sirakov I, Austin DA & Austin B (2018) Recovery of Bacillus mycoides, B. pseudomycoides and Aeromonas hydrophila from common carp (Cyprinus carpio) and rainbow trout (Oncorhynchus mykiss) with gill disease. Journal of Fish Diseases, 41 (1), pp. 125-129. https://doi.org/10.1111/jfd.12686

Abstract
During a 3-month period from June to the end of August 2016, ~5% mortalities were observed in a farm with rainbow trout (Oncorhynchus mykissWalbaum) and one farm of common carp (Cyprinus carpioL.) in Bulgaria. The disease was manifested by gill ulcers/rot, asphyxiation and bloody ascites.Aeromonas hydrophilawas isolated from the internal organs of all the diseased fish.Bacillus mycoidesorB.pseudomycoideswere recovered from the gill lesions on diseased carp and rainbow trout, respectively, with identification achieved by conventional phenotyping and by sequencing of the 16S rRNA gene. In vivo experiments confirmed that all three organisms were pathogenic to rainbow trout.

Keywords
Aeromonas hydrophila; B. pseudomycoides; Bacillus mycoides; co-infection; gill disease

Journal
Journal of Fish Diseases: Volume 41, Issue 1