Prevention and treatment of common diseases of loach

Although loach has strong vitality, the water area where loach is cultured is a very complex environment. Their growth and life are affected by human factors besides water environment. Changes in any of these factors beyond the ability of the loach itself to adapt, or the loach itself weakened resistance, will lead to the occurrence of disease.

The factors of loach disease can be summarized into two major factors: one is external factors, including physical and chemical properties of culture water, biological characteristics and artificial effects; the other is internal factors, that is, the immune function of loach itself is reduced, the disease resistance is reduced, and it is easy to be attacked by pathogens. The two interact and influence each other. But also plays the decisive role lies in the loach itself intrinsic factor.

Control technology of loach red fin disease

[Causes] It is caused by deterioration of pool water, improper nutrition and fish injury. Symptoms include congestion around the fins, abdomen and anus of the diseased loach.

[Prevention and control methods] ① To avoid fish body injury, fry should be soaked in malachite green solution of 5 mg/L for 15 minutes before putting them into the pool. 2. Soak the diseased loach in 3% saline solution for 10 minutes.③ Soak with 10 mg/L tetracycline for a day and night, or mix chloramphenicol in feed.

Prevention and treatment of loach enteritis

[Cause] Loach enteritis disease is also called intestinal plague, aconitum plague. Sick performance: slow action, stop eating, loach body black green, head appears special, abdomen erythema, intestinal congestion inflammation, anal redness, light abdomen blood and yellow mucus outflow, heavy purple, soon died.

[Treatment method] ① Every 50 kg loach is fed with 5 g of sulfamethide and 0.5 g of ascorbic acid mixed with feed for 3 days. (2) 15 g garlic was added to every 50 kg loach. 2-6 Diva halved and continued feeding. Furacilin can also be used instead of another place, every 50 kg mud scale with 2 grams of mixed feed feeding.

Control Technology of Water Mildew of Loach

[Causes] The disease mostly occurs in low temperature periods, especially in winter storage periods. Symptoms of white cotton wool attached to the surface of the fish water mold.

[Control method] ① Soak the diseased loach in 10 ml/L malachite green solution for 20 minutes, or soak it in 3% salt solution for 5-10 minutes.② During incubation, fish eggs are prone to this disease and can be soaked in 1 ml/L malachite green solution for 30 minutes.

Prevention and treatment of loach fever

[Cause of disease] Due to excessive stocking density, mucus secreted by loach accumulates and ferments in the pool, releasing heat to increase water temperature, reduce dissolved oxygen, and cause a large number of deaths due to anxiety and restlessness of loaches.

[Prevention and control methods] ① Reduce stocking density, and replace or supplement fresh cold water immediately when the disease is found.② After the onset of the disease, 0.5 mg/L copper sulfate water can be splashed in the whole pool.

Control technology of loach bubble disease

Caused by excess oxygen or other gases. Its symptom is in bowel aerate and float on water surface. Available 0.7 mg/L copper sulfate water splash pool.

Control technology of loach parasitic disease

[Cause of disease] Loach in the seedling breeding stage are common wheel worm, tongue cup worm, third generation worm parasitism and cause death. Loach suffering from parasitic disease, body surface mucus increased, loss of appetite, solitary swim, floating surface.

[Control methods] ① Wheel worm, tongue cup worm can be 0.7 mg/L copper sulfate water splash treatment.② The third generation insect can be sprinkled with 0.5 mg/L trichlorfon in the whole pool.

Control technology of loach white body red ring disease

[Cause of disease] This disease is caused by long-term water storage after capture. The sick loach body is gray with red ring patterns.

[Prevention and control methods] ① Once the disease is discovered, immediately change the diseased loach to the pond for stocking.② Soak in 5 ml/L malachite green solution for 15 minutes before stocking. (3) After stocking, the whole pool was sprinkled with 0.2-0.3 ml/L malachite green for disinfection.

Control technology of loach pest

During the breeding period of loach seedlings, the main harmful animal is water centipede, which seriously affects the survival rate of loach. When killing enemies, loach can be moved to the pool and splashed with 0.02 ml/L of ichlorin.