I. Introduction. In recent years, the cold-water fish aquaculture industry has gradually attracted attention, and its advantages such as high market value, fast growth rate and strong disease resistance have gradually been recognized by the majority of farmers. However, successful farming of cold-water fish is not an easy task and requires a certain amount of skill and experience. This article will introduce cold-water fish farming methods and precautions in detail to help you maximize the benefits of farming.
Second, the site selection and construction of the pool.
Site selection: Choose a place with convenient transportation, sufficient water source and good water quality to build the pool. At the same time, the site should have good flood control and drainage facilities to cope with sudden weather changes.
Pond construction: The cold-water fish breeding pond should be rectangular, with a moderate area and a depth of 1between 5-2 meters. The bottom of the pond should have a certain slope to facilitate drainage and fishing. Anti-escape nets should be set at the edge of the pond to prevent cold-water fish from escaping.
3. Variety selection.
Variety characteristics: choose varieties that are suitable for the local environment, fast growth, strong disease resistance and good quality. Such as: salmon trout, sturgeon, etc.
Stocking density: according to pond conditions, management level and other factors to determine the stocking density, generally 1000-3000 per mu is appropriate.
Fourth, feeding management.
Feed selection: choose feed with comprehensive nutrition, high digestion and absorption rate, and good palatability. Choose the right feed according to the growth stage and breed characteristics of cold-water fish.
Feeding skills: follow the principle of "four determinations" (timing, quantitative, qualitative, positioning), and adjust the feeding amount and feeding times according to water temperature, weather, fish growth and other factors. Generally, it is fed 2-3 times a day, and the feeding amount accounts for 3-5% of the fish's body weight.
Water quality management: Keep the water fresh and dissolved oxygen sufficient. Regularly monitor water quality indicators and take regulatory measures as needed, such as filling new water and using aerators.
Daily management: Patrol the pond 2-3 times a day to observe the fish activities, feeding conditions and water quality changes. Remove sick and dead fish in a timely manner, make records and dispose of them properly.
5. Disease prevention and control.
Preventive measures: keep the pond clean, feed reasonably, strengthen water quality management, and improve the disease resistance of cold-water fish. Ponds and fish are regularly disinfected to prevent diseases.
*Method: Once a fish disease is found, ** measures should be taken in time. Commonly used methods include medications, immune boosters, etc. The specific medication should be selected and used according to the condition and veterinary advice.
Precautions: Avoid drug abuse, so as not to produce damage to the fish body At the same time, it is necessary to follow the provisions of the drug withdrawal period to ensure the safety of aquatic products on the market.
6. Harvest and sales.
Timing of harvest: Timing of harvest is determined based on the market** and fish growth. In general, fish can be harvested when they reach commercial size.
Sales channels: actively expand sales channels, establish cooperative relations with aquatic product wholesale markets, supermarkets, restaurants, etc., and improve the market competitiveness of cold-water fish. At the same time, it can also be sold online through the online platform.
Brand building: pay attention to brand building, improve product quality and market credibility. Brand image and market competitiveness can be enhanced by registering trademarks and applying for green food certification.
7. Summary and outlook.
Cold-water fish farming has high economic and ecological value, and is one of the important development directions of aquaculture industry in the future. Through the implementation of scientific and reasonable breeding methods and precautions, the yield and quality of cold-water fish can be effectively improved, and the breeding benefits can be maximized. Strengthen the research and practice of technological innovation and market expansion to provide strong support for the sustainable development of the cold-water fish industry.
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