Technical method for preventing and treating ichthyophthiriasis of cultured fishes by using artificial flow generation and ozone

Abstract

The invention belongs to the technical field of aquaculture disease prevention and treatment, and particularly relates to a technical method for preventing and treating ichthyophthiriasis of culturedfishes by using artificial flow generation and ozone. A relatively closed circulating water culture system is constructed and comprises a breeding area, a sewage collection area and an ozone treatmentarea, wherein water flow with a specific flow speed is manufactured in the breeding area through a water pushing and flow making device; fish bodies are washed through the habit that fish like to push water, ichthyophthirius multifiliis larvae in water are difficult to adhere to the surfaces of the fish bodies, and meanwhile ichthyophthirius multifiliis falling off from diseased fish bodies and sediments containing ichthyophthirius multifiliis at the bottom of a pond are scoured to the sewage collection area. After the water flow enters the ozone treatment area, the ichthyophthirius multifiliis larvae are killed through ozone with a specific concentration, the water body subjected to ozone treatment is pushed to the breeding area again through flow making equipment, the steps are repeated, the density of the ichthyophthirius multifiliis in the water body is continuously reduced, and therefore the purpose of preventing and treating ichthyophthiriasis is achieved. By adopting artificialflow making and ozone pest killing technologies, the technical method has the advantages of greenness and environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of fish breeding, and provides a technical method for preventing and treating the small melon worm disease of cultured fish by using artificial flow and ozone. Background technique [0002] Cucurbitiasis is a common global fish parasitic disease, which can infect most fishes, and is prone to explosive infection and mass death in aquaculture, causing huge losses to aquaculture. The life cycle of the small melon worm includes trophozoite stage, cyst stage and larval stage. After the trophozoite matures, it detaches from the fish body to form a cyst, and the cyst divides many times to form a large number of larvae. Drills under the skin to infect the fish. [0003] At present, the method for the treatment of small melon worm disease mainly includes physical method and chemical method. Physical methods such as using ultraviolet light to kill insects or creating an environment that is not conducive to its growt...

AI Technical Summary

Problems solved by technology

However, physical methods are difficult to apply to large-scale water aquaculture models due to high energy consumption or high cost, and the effect is not good, while chemical methods are likely to cause drug residues. Some drugs have strong side effects and carcinogenic risks, and have been expressly banned by the state. in farmed food fish

[0004] Therefore, the existing technology has obvious deficiencies and is not suitable for the prevention and treatment of small melon worms in large water bodies, and there are technical blind spots, so it is necessary to develop technical methods with stronger applicability, environmental protection and safety

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