Prevention and treatment of red skin disease, a common disease in cultured baby fish

Symptoms: the body of the sick baby fish (giant salamander) is swollen, showing inflamed red plaques and suppurative ulcers. Irregular red masses often appear on the body surface of the disease. at the beginning of the disease, there are light yellow pustules in the center of the red masses, and gradually spread to the peripheral skin tissue. When the pustule is punctured, a larger festering focus is formed. Anatomical examination showed hepatomegaly with bleeding spots, intestinal erosion and increased ascites.

Treatment: first, apply chloramphenicol ointment on the body surface ulcer, while intramuscular injection of gentamicin, continuous injection for seven days, 15 mg gentamicin per kilogram of salamander body weight every day, the cure rate is 93%. Streptomycin and norfloxacin are effective. Oral administration of synergistic diamine and kanamycin. Each kilogram of baby fish (giant salamander) was fed with 50 mg of synergistic diamine embedded in the fish for 5 consecutive days. At the same time, 1 ml kanamycin was injected intramuscularly per kilogram of baby fish (giant salamander) for 5 consecutive days. Prevention: every 10 to 15 days, the water body is disinfected with "Yuxiaan". Pay attention to the process of changing water and clearing the pool, to prevent damage to the skin of baby fish (giant salamander) during operation, otherwise germs invade and infect through body surface wounds. If no new water is added in the culture for a long time, the water quality is bound to deteriorate, the bacteria in the water multiply in large numbers, and it is also easy to invade the wound of the giant salamander. Therefore, frequent replacement of new water can also prevent the disease.