Use of potassium permanganate to disinfect Atlantic salmon (Salmo salar) gills

This study determined the efficiency of potassium permanganate (KMnO 4;5 mg/l) in disinfecting Atlantic salmon gills and verified the effect of this disinfection process on subsequent development of amoebic gill disease (AGD). KMnO4 treated fish showed a significant reduction in their average bacterial colony forming units from the gills compared to untreated fish. However, there was no significant difference in AGD severity between KMnO4 treated and untreated groups.