Application technology of bleaching powder in fish disease control

Bleaching powder plays an important role in the prevention and treatment of fish diseases, which is cheap, easy to use, good effect and so on. Calcium hypochlorite, the main component of bleaching powder, can form hypochlorite with strong bactericidal ability in water, so bacterial fish disease bleaching powder has a good curative effect. Spraying 1 gram of bleaching powder in the whole pond per cubic meter can effectively prevent the occurrence of bacterial fish disease.

1. White skin disease, also known as white tail disease, the tail is white, and then gradually spread forward. Treatment: 1 gram of bleach (containing 30% available nitrogen, the same below) is sprinkled all over the pool for each cubic of water.

2. White head and white mouth disease the skin of the fish from the kiss end to the eyeball, the pigment fades or becomes milky white. Treatment: the above methods were used once a day for two consecutive days.

3. The red skin disease fish is bleeding and inflamed, and the fin falls off. ① prevention method: when fish are stocked, soak and wash for about half an hour with 10 grams of bleach per cubic meter of water. ② treatment: internal administration of antibiotics, external use of 1 gram of bleach per cubic water throughout the pool.

4. Furunculosis the back of the fish body skin and muscle tissue inflammation, the emergence of abscess, a sense of edema. The method of prevention and treatment is the same as red skin disease.

5. Rotten skin disease is also known as printing disease: round erythema appears in the diseased part of the back of the torso, and then the epidermis decays. Treatment: each cubic of water with 1 gram of bleach throughout the pool.

6. The scales of diseased fish open outward and stand up like pine balls, so they are called pine ball disease. ① prevention method: the spawning pool of parent carp should be cleaned and disinfected with bleach in winter. ② treatment: put 5 grams of copper sulfate, 2 grams of ferrous sulfate and 10 grams of bleach in 1 cubic meter of water and wash the diseased fish for about 10 minutes.

7. Gill rot disease, also known as "aconite plague": diseased fish often swim alone from the group, move slowly, the body color is black, especially the head becomes black. Treatment: at the initial stage of the disease, bleach baskets can be hung around the food for prevention and treatment: when the disease is serious, use 1 gram of bleach per cubic meter of water to sprinkle the whole pool.

8. Enteritis is also known as rotten intestinal distemper: the abdomen of the diseased fish is dilated, showing erythema, and the anus is red and swollen protruding like a crater. Treatment: sulfonamides can be used for internal administration, and external medicine is generally sprinkled all over the ground with 1 gram of bleach per cubic water.

9. Red fin disease anal and pectoral fin bleeding, anal redness and swelling, intestinal congestion and so on. Preventive method: once a year, dry ponds are thoroughly disinfected. Use 20 kilograms of bleach every 100 square meters. 1After 2 days, the water was drained and then exposed to sunlight for a week.