期刊
DISEASES OF AQUATIC ORGANISMS
卷 113, 期 3, 页码 207-213出版社
INTER-RESEARCH
DOI: 10.3354/dao02847
关键词
PAA; Peroxide; H2O2; Furunculosis; Yersiniosis; Fish pathogen; Aquaculture; Bacteria; Water treatment
资金
- Schreiner-Foundation for Research and Education
Peracetic acid (PAA) is a therapeutic agent used for disinfection in aquaculture, but it must be investigated thoroughly in order to mitigate diseases without harming the fish. Successful disinfectants (like PAA) should not leave dangerous residues in the environment in order to successfully contribute to sustainable aquaculture. The aim of our study was to compare the effectiveness of 6 commercial PAA products with different molecular PAA:H2O2 ratios to reduce bacterial growth of Aeromonas salmonicida and Yersinia ruckeri and to determine effective concentrations and exposure times. All products reduced colony-forming units (CFUs) of Aeromonas salmonicida and Yersinia ruckeri. Products with higher molecular PAA:H2O2 ratios inhibited growth better than products with lower molecular PAA:H2O2 ratios at the same PAA concentration; this indicates that H2O2 is not the driving force in the reduction of Aeromonas salmonicida and Yersinia ruckeri growth by PAA in vitro. The practical application of the products with high molecular PAA:H2O2 ratios should be prioritized if these pathogens are diagnosed.
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