June 7, 2007


Japanese scientists test antibacterial coating for fish farms


Japanese scientists from the Fuji Trout Hatchery at the Shizuoka Prefectural Research Institute of Fishery and Kobe Steel, Ltd. have tested an antibacterial coating for commercial fish farms.


By improving the sanitation of fish hatchery equipment, the coating helps to control parasitic water mold that inhibits hatching of salmonidae. The coating, called KENIFINE, also allows fisheries to cut down on expensive veterinary medical products needed to maintain sanitation of hatchery equipment.


Although malachite green has been used to control parasitic water mold on fish eggs for many years, a revision in Japan's Pharmaceutical Affairs Law has banned its use since August 2005.


KENIFINE has proven its effectiveness after more than two years of joint research and testing by both organisations at fish farms in Shizuoka prefecture. Additionally, no harmful side effects due to the coating were observed, with fish eggs registering a good hatching rate and healthy adult fish seen.  


The coating works as a disinfectant when plated to surfaces, displaying similar effectiveness as iodine for aquaculture use and antiseptic soap.