How to prevent and cure the skin rot disease of scaleless fish

Scaleless fish mainly refers to catfish, such as big mouth catfish, leather catfish, soil catfish, channel catfish, channel catfish and so on. From April to October every year, scaleless fish are prone to skin rot, which is infected by stubborn columnar bacilli. Symptoms of the diseased fish: at the initial stage of the disease, gray-white rotten plaques or slight hyperemia appear on the top of the head and both sides of the body, and the body surface loses luster and mucus. With the aggravation of the disease, the skin of the focus fester, exposing muscles. Sick fish often wander to the surface of the water until they die.

Scaleless fish

Prevention and control can be carried out in several aspects:

1. Strengthen feeding management:

(1) Water quality management. Because there are many bacteria and some harmful microorganisms in the general aquaculture water, and the contents of ammonia nitrogen and nitrite in the water are high, the fish is in a bad environment and is in a state of sub-health, once some unfavorable factors appear, bacteria and other harmful microorganisms will take advantage of the deficiency, and the fish may break out diseases. Therefore, farmers must strengthen the regulation and management of water quality. Generally, quicklime is used to regulate the water quality of fish ponds every 10 to 15 days. The amount of quicklime: 15-20 kg / mu in terms of 1 meter water depth.

(2) prevent mechanical damage or abrasion of fish. Pay attention to the feeding to set up more than a few bait tables, if excessive concentration in feeding, fish grazing each other when grazing, infected with bacteria, if not timely disinfection, healing, it may lead to skin rot.

2. Feed prevention:

Regular feeding of Chinese herbal medicine additives, compound multi-dimensional, antibiotic drugs.

3. Treatment of diseased fish:

External use: sprinkle with quaternary ammonium salt complex iodine in the whole pool; internal administration: feed the fish with high quality feed mixed with compound multi-dimensional, sulfonamides, Sanhuang powder and so on.