Red Disease (Motile Aeromonas Septicemia) Bacterial Disease
A. Causes: Aeromonas hydrophila
B. Characteristics of pathogens:
- "Red Disease" in fish is a bacterial group disease that occurs in all ages and types of freshwater fish.
- Aeromonas hydrophila bacterial infection occurs in fish if the condition of fish that is maintained stress resulting from fish density that is too high, improper feeding / malnutrition, poor handling of fish, parasitic infections, organic ingredients that are too high in maintenance media, low oxygen below optimum limits, poor water quality, too extreme changes in pool water temperature fluctuations, etc.
- Attacks are severe, then if the environmental conditions of the pond continue to decline, the resulting deaths can reach 100%.
C. Clinical Symptoms:
- The body of fish in the pond becomes dull / dark, appetite decreases, fish often gather near the intake canal
- Isolate and identify bacteria through bio-chemical tests.
- Detect bacterial genes through polymer interaction reaction (PCR) techniques.
- Early prevention of fish seeds through anti-Aeromonas hydrophila vaccination techniques;
- Cleaning the cultivation facilities through disinfection before
and during the process of maintaining fish in the pond;
- Avoiding stress conditions (physical, chemical, biological);
- Carrying out immunostimulants (for example adding vitamin C to feed) routinely during maintenance;
- Reducing the content of organic matter dissolved in water and / or increasing the frequency of new water replacements;
- Perform integrated fish health management (fish, environment and pathogens);
- Treatment of this disease can be done with herbs can
use: babandotan leaves (Ageratum conyzoides L) Treatment of fish is done by: Doing the distribution of babandotan leaves that are still fresh to the cultivation pond evenly or can be given as fish food with a dose of 30 kg leaves for 100 kg of fish for 5-7 days.