Pathogenic bacteria such as Aeromonas hydrophila , Aeromonas jandaei , Flavobacterium oreochromis , Edwardsiella tarda , and Citrobacter freundii pose major health and economic challenges in aquaculture . Effective disinfectants are crucial for preventing and controlling infections in fish production systems.
This study evaluated the in vitro efficacy of a potassium monopersulfate-based oxidizing disinfectant against these pathogens . Bacterial strains were exposed to a 0.5% disinfectant solution for 5, 10, and 20 minutes. Following exposure , samples were plated on appropriate culture media and incubated to assess bacterial survival.
Complete inactivation of all tested species was achieved after 5 minutes of exposure , with no growth observed at 10 and 20 minutes. These results indicate that the disinfectant is highly effective against a broad spectrum of Gram-negative fish pathogens , with a minimum contact time of 5 minutes, highlighting its potential as a preventive biosecurity tool in aquaculture operations.