Disease control of crabs - rot shell disease

Cause: Caused by bacterial infection.

Illness: It may be due to step-foot damage caused by infection of bacteria. The early stage of the diseased crab was damaged by red or brown spots. The late spots became irregular and rotted. In severe cases, the carapace gradually became black ulcers, and the carapace was eroded into a hole and visible membrane or muscle. It eventually leads to the death of the diseased crab, and the morbidity of the disease is relatively fast, causing certain damage to young crabs and crabs.

Prevention:

1) Disinfect the whole pool with "fish fungus clearing series disinfectant" or "fish killing with Bo";

2) The diseased crabs were found to be singled out and soaked in 5 to 10% high-concentration salt solution for 3 to 5 minutes each time, 2 to 3 times per day.

3) Simultaneously feed "Fish Ning Ning Type 2" or "Fish Bikang".