Fish culture method

Abstract

The invention discloses a fish culture method. The method comprises the following steps that 1, cage culture is performed in a tank, a fish manure recycling system and a translation method bottom sewage self-overflowing system are assembled below the cage in a matched mode, fish manure is recycled, and tank bottom sewage and sediments are effectively discharged; pollution caused by fish manure andresidual feeds to water is lowered; 2, oxygenation equipment is arranged outside the cage culture region, water flow on upper and lower layers and the surface layer is promoted, and water oxygen dissolution is increased; 3, a floating floor is applied to planting of aquatic plants, pond culture wetland planting and breeding combination are performed outside the cage, fish and vegetable mutualismis achieved, and biological cleaning of the water quality is achieved; 4, scientific fish culture adopts the innovative scientific aquaculture mode of seven words, namely water, seeds, materials, prevention, separation, mixing and working; the pond fish culture facilities at the current stage are changed, culture device engineering is innovated, scientific design and scientific layout are performed, scientific assembling of physical, biological purification and other synthesis techniques is achieved, and on the basis of ecologic environment-friendly culture technology, integration innovation is achieved.

Description

technical field [0001] The invention relates to a breeding method, in particular to a low-carbon, environmentally friendly scientific fish farming method to replace traditional farming techniques. Background technique [0002] The technology of fish farming started relatively early. Freshwater cage culture in my country began in the 1970s. Fish are also cultured in cages in slow-flowing river courses and even in deep ponds. The usual place for cage fish farming technology is to choose generally larger waters, such as power generation reservoirs, lakes, etc., where fish can be cultured in cages, and some rivers with better conditions and deep-water ponds with larger areas can also set up cages. In order to obtain a better breeding effect, you should generally choose a place with flat water bottom, small wind and waves, relatively stable water level, water depth above 3.5m, sufficient water source, fresh water quality and no pollution. Cages should be located as far away as p...

AI Technical Summary

Problems solved by technology

[0003] Reduce the feed factor and breeding cost, ecologically prevent and control fish diseases, ensure the quality and safety of aquatic products, and sell fish products smoothly. Swimming slowly, check the pH of the water as high as 9.0, because the pH rises by 1, the concentration of toxic non-ionic ammonia increases, and the toxicity increases by about 10 times, which not only inhibits the growth of fish, but also causes a large number of fish to die in severe cases, causing heavy losses to farmers Therefore, the oxygen should be increased 1 hour in advance, and the feeding time should be adjusted. Especially when the dissolved oxygen is lower than 3mg / L, it is easy to be attacked by parasites and bacteria, which will reduce the immune function of the fish and cause fish diseases. Not only the fish grow slowly, but the feed The coefficient is high, and in severe cases, it will cause fish death and cause heavy losses

These are the consequences of lack of scientific fish farming

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