Diagnosis and treatment of common diseases of tilapia

1. Water mold

[treatment] do not injure the fish during pulling and transportation; raise the water temperature of the overwintering pool to 20 ℃ after the discovery of water mildew; sprinkle the whole pool with mixed solution of salt and baking soda.

2. Watermelon disease

[diagnosis] the symptom is that there are many white dot-like vesicles on the body surface and Gill of infected tilapia.

[treatment] disinfect the overwintering pond with quicklime. Wash the sick fish with salt water.

3. Oblique tube disease

[diagnosis] caused by oblique tube worms invading the skin and gills of fish. The symptoms are that the diseased fish secrete a lot of mucus and the surface of the skin and gills are pale.

[treatment] thoroughly disinfect the overwintering pond with quicklime or sprinkle the whole pond with copper sulfate; when the fish enter the overwintering pond, wash with copper sulfate solution; during treatment, sprinkle the whole pool with the mixture of copper sulfate and ferrous sulfate. Wash the sick fish with salt water.

4. Rotifer disease

[diagnosis] caused by a large number of rotifers parasitic on the gills and skin of the fish. Diseased fish swim alone from the group, floating on the water slowly, loss of appetite, can cause a large number of deaths.

[treatment] disinfect the overwintering pond with copper sulfate, or bathe with salt water.

5. Fish carp disease

[diagnosis] it is caused by the invasion of fish fish body surface. The diseased fish is in an uneasy state, and the fish is relatively thin. In serious cases, the diseased fish swim alone from the group, float on the surface of the water, and their body color is black, resulting in death.

[treatment] Prevention and treatment: sprinkle with crystal trichlorfon in the whole pool before overwintering. Or sprinkle it with fish and sprinkle it in the whole pool with insecticide.