Symptoms and treatment of edema disease of crab

In recent years, crabs are highly sought after, their nutritional value is also very rich, protein is extremely high, economic benefits and breeding prospects are very good, more and more farmers begin to cultivate crabs, but diseases are inevitable when breeding crabs, and edema disease is one of them.

I. the cause of the disease

The abdomen, navel and dorsal shell of the diseased crab were swollen and transparent. The diseased crab stopped feeding at the edge of the pool and died in the shallow water of the pool. The disease is caused by bacteria caused by abdominal injuries during the breeding of river crabs.

II. Symptoms of disease

The abdomen, abdominal muscle and dorsal shell of the diseased crab were enlarged and transparent. The sick crab crawled on the edge of the pool, stopped feeding and finally died in the shallow water by the pool.

III. Prevention and control methods

1. When molting, minimize the disturbance to the river crab so that it will not be injured.

2. every cubic meter of water is sprinkled with 0.5 grams of oxytetracycline on the whole pool.

3. Every kilogram of river crab was fed with 0.1 ~ 0.2 grams of oxytetracycline or erythromycin for 7 days.

Note: crabs are rich in protein and trace elements, which have good nourishing effect on the body. Crabs contain more vitamin A, which is helpful for skin keratosis. Crabs also have the effect of anti-tuberculosis, and eating crabs is of great benefit to the rehabilitation of tuberculosis.