Epizootic Ulcerative Syndrome (EUS)
A. Cause: Aphanomyces invadans
B. Characteristics of Pathogens:
- Epizootic Ulcerative Syndrome (EUS) and / or Mycotic Granulomatosis (MG) and / or Red-spot disease (RSD) are ulcer diseases caused by infection of fungus A. invadans;
- The fungus spores infect the surface of the fish's body, which will cause ulcers;
- Hosts of this disease include freshwater and brackish fish, namely betutu, cork, fish, carp, catfish and fish;
- Mortality / mortality rates range from 20–80%
C. Clinical Symptoms:
- There is a red spot on the surface of the body;
- Fish appetite will disappear
- fish swim to the surface and hyperactivity,
- fish's body will be dark in color;
- These red spots will develop into bright red or brownish red wounds.
- Neutralize acidity and / or alkalinity of water through calcification of pond water.
- Isolate sick fish and / or throw dead fish.
- Conduct hygienic and sterile preparation of the pool of the fungus spores through drying, liming, disinfection.