What are the prevention and treatment methods for crab limb rot disease

Crab limb rot disease generally occurs at a high rate from May to August each year. The main symptoms are rotting of the intestines and appendages, and the diseased crabs also begin to reduce their food intake or even refuse to eat, eventually dying because they cannot molt.

Prevention and treatment methods for crab limb rot disease

1. Regularly use quicklime at 15 mg/L water or bleaching powder at 1 to 1.5 mg/L water to splash the whole pond for disinfection.

2. Use oxytetracycline at 0.5 to 1 mg/L water to splash the whole pond.

3. Use bromochlorohydantoin or chlorine dioxide to splash the whole pond for disinfection, for 2 consecutive days.

4. At a ratio of 0.5 kg of 10% florfenicol per 1000 kg of feed, feed continuously for 3 days.