Prevention and control of aquaculture diseases can not be ignored

Although it has entered the autumn, fish growth is still in its prime. In addition, due to the influence of typhoon and rain, and the large temperature difference between early and late autumn, it is easy to cause the fish to adapt to the environment, and the prevention and control of diseases can not be ignored.

Disease prediction

According to the monitoring data of aquaculture diseases provided by various localities in the past three years and the situation of this year's forecast, the forecast of important cultured species, major diseases, and areas of major concern in September is as follows:

Grass carp: prone to grass carp bleeding disease, gill disease, enteritis disease, red skin disease, anchor head disease, trichoderma disease, hepatobiliary syndrome.

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鲤: prone to gill disease, enteritis disease, sporeworm disease, anchor head disease, etc., in the northern region is also prone to trichodiasis, ringworm disease, water mold and blight disease.

鲫: prone to bacterial septicemia, gill disease, trichoderma, anchor head lice and so on.

Tilapia: Prone to streptococcal disease, trichoderma and other diseases, focusing on areas such as Guangdong, Guangxi, Hainan and other pond culture areas.

Dot-clap: prone to intestinal sepsis, bacterial sepsis, enteritis, trichoderma, etc. Focus on areas such as Jiangxi, Hubei, Hunan and other high-density cage culture areas.

Rainbow trout: prone to enteritis, gill disease, water mold disease, etc., when the water temperature drops below 15 °C, infectious hematopoietic organ necrosis may occur, focusing on cold water fish flow and cage culture area.

Large yellow croaker: Prone to stimulating secretable cryptosporidosis, vibriosis, etc., focusing on the seawater cage culture area of ​​Zhejiang and Fujian provinces.

Prawns: White spot syndrome, red-legged disease, vibriosis, ciliated ciliate prone, etc. The focus is on coastal prawn pond culture areas.

Crabs: prone to black shank disease, ciliated ciliate disease, etc., may occur crab trembling disease, focusing on the main area for the river crab.

Chinese sturgeon: It is prone to mumps disease, red neck disease, skin disease, white board disease, etc. The focus area is Chinese sturgeon pond and greenhouse cultivation area.

Control measures

1. Do your day-to-day management. In accordance with the "four set" principle, reasonable feeding, timely addition of vitamin C, garlic, etc., to improve the immunity of cultured species. Pay attention to changes in water temperature, dissolved oxygen, etc., diligently open aerators, add new water in a timely manner, and maintain a good water environment.

2. Disinfect and kill insects. When the water temperature is around 20°C, most of the parasites are suitable for growth and reproduction. Infection of parasites with fish is a predisposing factor for many diseases. It is necessary to strengthen observation, eliminate pests completely, and eliminate the harm of various complications.

3. Standardized medication. Once the disease occurs and needs drug treatment, the national standard fishery drugs should be used and scientifically used in accordance with the instructions for use.

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