In recent years, however, abdominal operations have been tried at the Fisheries Experiment Stations, etc. Such an approach is clearly beyond the capabilities of amateurs. This disease is a nutrition disorder due to ingestion of oxidized fat contained in the aged feed. The back of affected koi appears emaciated, as flesh on both sides of the base of dorsal fin has fallen off. Once diagnosed positively, the Sekoke disease is very difficult to cure.
Prevention is thus very important.
First of all, don't feed koi with aged food. The feed mixed with the drugs which contain Vitamin E is said to be good in preventing the Sekoke disease. With their spinal cord affectd, the koi sink to the pond bottom or twist while swiming. Spinal curvature results in severe cases. Once manifested, this disease has no cure.