Swollen cheeks Myxospridea
About one-month-old fry are apt to be affected by Myxospridea just after they begin to be fed artificial feeds. A gill opens wide and shows red and swollen gill filaments. The diseased fish breathes agonizingly and dies. The disease spreads rapidly and many fries die. If the disease heals, the jaws of the affected koi will be deformed. Koi older than two years old are not affected by it, because they are immune to it. The cause is Myxospridea. No medicine is efficacious against it. For prevention, the water of the pond is to be disinfected with malachite green early June and minced fresh meat of an immunized koi against Myxospridea is to be given to the koi in the pond. It will be carried on for a week. This treatment is effective even after a koi becomes ill. The blood of the minced koi prevents Mixospridea from growing.
The liquid stays under the scales and pushes them up. The scales bristle up. The liquid stays also in the abdomen and the bodyswells. The diseased koi looks like a pine cone.First, a part of the body is affected, but gradually the disease spreads all over thebody. Eyes of the diseased koi protrude. It breathes hard, swimming around in a crazy manner. After a day or two the fish dies, overturning on its back. The Doitsu happens to be affected by the disease, but it recovers easily.Its causes are supposed to be some bacteria, interruption in blood circulation caused by a diseased blood vessel or internal organ, some medicines and excessive eating of live foods.It occurs often in the spring when oxidized pupae are given to koi. When the water temperature is high, it scarcely breaks out. Any fish, either fry or adult, is affected in dirty water.Sulfa drugs, antibiotics, and furan drugs are efficacious. It is also helpful to break blisters and apply monafracin with Dipterex to the part.It is important to find the disease in its early stage, otherwise, it will be difficult to cure it.mn 2