How to prevent and treat diseases in walking catfish farming? Detailed explanation of key technical points

In the process of walking catfish farming, disease prevention work is particularly important. In daily management work, when stocking fry, fish body disinfection must be done well. The commonly used method is common salt mixed with water at 1:30, that is, 1 kg of salt to 30 kg of water, and the fry are soaked for 20 minutes before being put into the pond, only then can the fry be released. When the fry are put into the pond, transported fry may show "body bending" symptoms due to the large temperature difference in the pond water. Before the fry are put into the pond, pond water must be slowly poured into the bucket transporting the fry using another bucket, so that the water temperature gradually balances, and only then can the fry be released into the pond.

After the fry are put into the pond, the feed given differs from the feed used during seedling rearing, and intestinal disease often appears within a few days of stocking, causing large numbers of dead fish. Therefore, from the first feeding after releasing the fry, mix 6-10 g of erythromycin into 1 kg of feed and feed it, once per day, for 5 consecutive days.

Viral skin rot disease is the most harmful disease in walking catfish farming. This disease mostly appears 1 month after the fry are stocked, when the body weight is about 50 g. The symptoms are: blisters appear on the body surface of diseased fish, the base of the fins becomes congested and begins to rot, and in severe cases the whole body ulcerates; at this point large numbers of fish die until the entire stock is wiped out. Prevention and control method: regularly splash quicklime mixed with water over the whole pond, using 10-15 kg of lime per 667 sq m, used continuously for 15 days as one course. If this disease appears, in most cases there is no way to control the condition; this disease can only be managed through regular medication in daily management, with prevention as the priority.