MySheen

Prevention and treatment of common bacterial diseases in fish

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, 1. The cause of hemorrhagic disease is the deterioration of water quality at the bottom of fish pond, low dissolved oxygen, many harmful substances, poor management of culture, or feeding moldy and inferior bait, which will cause the disease. Prevention and control methods to strengthen feeding and management, comprehensive prevention. If drugs are used regularly, dibromohydantoin, bromochlorohydantoin and Chinese herbal extract preparations can be used to disinfect the water; or beneficial bacteria such as photosynthetic bacteria can be used to purify water quality; immune enhancers can be added to the diet to absorb and degrade ammonia, nitrogen, nitrite and other harmful substances in water by using zeolite powder and nitrite degradants. After the attack

1. Hemorrhagic disease

The cause of the disease is the deterioration of water quality at the bottom of fish ponds, low dissolved oxygen, many harmful substances, poor culture management, or feeding moldy and inferior bait.

Prevention and control methods to strengthen feeding and management, comprehensive prevention. If drugs are used regularly, dibromohydantoin, bromochlorohydantoin and Chinese herbal extract preparations can be used to disinfect the water; or beneficial bacteria such as photosynthetic bacteria can be used to purify water quality; immune enhancers can be added to the diet to absorb and degrade ammonia, nitrogen, nitrite and other harmful substances in water by using zeolite powder and nitrite degradants. After the onset of the disease, effective drugs were used to kill parasites, and dibromohydantoin and bromochlorohydantoin were used for water disinfection. Feed the bait while sprinkling disinfectant, adding 1.5 grams of bioactive additive per kilogram of feed for 5 days.

two。 Enteritis disease

The causes of the disease are the deterioration of water environment, low dissolved oxygen, feeding metamorphic feed and the decrease of fish resistance. The disease often occurs from April to September.

The method of prevention and control is the combination of external elimination and internal administration. Disinfectants such as bromochlorohydantoin or dibromohydantoin can be used to disinfect aquaculture waters, and immune polysaccharides Haizhenbao or Yubiao can be added to the diet to enhance the immunity of fish to control the disease.

3. Gill rot disease

The cause of the disease is caused by direct contact between fish and pathogens, especially after mechanical damage to the Gill of fish. The disease can occur in the range of 15-30 ℃, and the higher the water temperature is, the easier it is to occur.

The prevention and control methods should avoid fish injury during operation, soak and disinfect the seedlings with potion, and use Yubide or dibromohydantoin to prevent and cure the disease.

4. Red skin disease

The cause of the disease can be caused by fish injuries caused by manual operations such as fishing, transportation, stocking, or mechanical injury, frostbite and parasitism. The disease can be prevalent all the year round.

Before overwintering, disinfectants such as bromochlorohydantoin should be used to disinfect the pond water and deepen the pond water. After the onset of the disease, the combination of pesticides and disinfectants should be used in time to treat the water, and take natural plant extracts and other drugs for treatment.

 
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