How to prevent the occurrence of ring disease in cultured tilapia

[etiology] the ring worm keeps moving the Gill filaments with anchor hooks and small marginal hooks, resulting in Gill tissue damage. The disease mainly harms fish fry and fish species, and a large number of parasites can make fish fry and fish species die in large numbers. The suitable water temperature is 20-25 ℃, and the disease season is summer, autumn and overwintering.

[symptoms] the Gill of diseased fish is mucous, the Gill filaments are swollen, it is difficult to breathe, the body color is black, no food is eaten, the fish is thin, lack of energy, floats on the water surface, the diseased fish is irritable, jumps, and swims slowly; this disease is often complicated with rotifer, which can kill a large number of fish in severe cases. If parasitic in the body surface, mucus secretion increases, and there are hyperemia and hemorrhagic spots. Prevention: ① parasitosis focuses on prevention. Please refer to "Prevention of ② parasite Diseases". When ② releases fish fry and fry, wash them with potassium permanganate (15g for 1 cubic meter of water) or Budweiser (1 cubic meter of water for 1 ml) for 15 minutes for 20 minutes. Treatment: ① diseased fish were soaked with Bai an Wei or Chong this Jing (1 cubic meter of water with 1.2ml) for 10 minutes. The whole pool of ② was sprinkled with Buanwei (1 bottle 2 mu), detoxified with detoxification Chaoshuang (1 bottle 3 mu) the next morning, and then mixed with 3 mu with 6 control bottom health 1 package + Dishu 1 package after 3 hours. ③ was fed with active garlic treasure, Materia Medica Dakang, Baogan promoting Changling, Qingyuan according to 1%, 2 meals a day for 3 days.