The cage culture river has the advantages of flexibility, wide water area adaptability, easy operation, etc., and is conducive to mechanized operation.
Aquaculture waters: Choose cages for water conservation, sunny environment, fresh water, no pollutants, no obstacles, wide water surface and good sunshine conditions, and require water depth of 3 to 6 meters per year, dissolved oxygen 4 mg. / l or more. It is not advisable to set up cages for waterways, dams in front of waterways, gates, main channels, and waters with flow rates exceeding 0.1 m/s. The distance from the bottom of the cage should be 0.5m or more to facilitate the removal of fish excreta.
The cage setup: The river is about 3 centimeters in size, with 6 mesh meshes; 8 centimeters in size and 1.5 centimeters in mesh. The cage is 8 meters long, 5 meters wide and 2.5 meters high. Its upper mouth is 30 centimeters above the surface of the water. On the four sides of the cage, a 2-meter-long, 1 meter-wide food table is made of wood. In more open water, the cages are arranged in "product" shape, plum shape or "people" shape, and the distance between cages is 15 to 30 meters. If restricted by water conditions, the cages can only be arranged in a “one†shape on the side of the river. Each two cages should be organized into groups—each group should be separated by more than 50 meters. The cage area is approximately 4% of the surface of the water.
Fish stocking: Ten to fifteen days before stocking, cage water. Fish species require a strong body and neat specifications. When stocking, put the oxygen bag in the box for 15 minutes and release the fish when the water temperature in the bag is approximately the same as the temperature of the water body. The cross section is stocked with about 12 stocks per square meter. In order to prevent the breeding of moss in cages, a small amount of herbivorous fish should be used.
Feed feeding: timing, fixed-point, qualitative, quantitative feeding. In the box, the amount of water peanuts and other aquatic plants should be stocked, covering an area of ​​20%. One week before the river was stocked, the yellow soybean milk and bean dregs were splashed into cages to cultivate early feeds. After the river enters the box, the mixture of fish pulp and wheat flour (3:1 ratio) is fed and the amount fed is 10% of the fish's body weight. Feed every day at 9am and 4pm.
Day-to-day management: Requires "one diligence, two arrests, and three defenses." “A diligence: that is, diligent inspection. Daily morning, evening and evening check the cages are in good condition, repair broken and timely repair, observe the fish and water conditions, and find that abnormalities are dealt with promptly. “Two catchesâ€: wash the boxes at the right time The attachments on the mesh are washed cleanly, and the second-hand-picked case is moved in a timely manner, and when the position of the cage falls and on the eve of the flood season, the cage is promptly moved to safe waters. “Three defensesâ€: prevent fish diseases. The principle of “giving priority to prevention and controlâ€: fish species must be strictly disinfected before stocking, soaked in salt water for 3 minutes with 3%-5% fl spoon, fed disease-free live animal feed, and used 3% before feeding or before storage. -5% saline solution soak for about 15 minutes.Splash lime water once a month.Check the fish regularly,take up the fish every 10 days and dip in 2%-3% saline for 15 minutes. Flood prevention, loss of three defense cages, and prevention of damage to rats, otters, water birds, etc.
Out of the box to take the fish: fish species raised to a certain period of time, to reach the box and change the specifications of the box or develop commercial fish, out of the box. Small species that do not meet the specifications are returned to the original cages for rearing or boxing.
Aquaculture waters: Choose cages for water conservation, sunny environment, fresh water, no pollutants, no obstacles, wide water surface and good sunshine conditions, and require water depth of 3 to 6 meters per year, dissolved oxygen 4 mg. / l or more. It is not advisable to set up cages for waterways, dams in front of waterways, gates, main channels, and waters with flow rates exceeding 0.1 m/s. The distance from the bottom of the cage should be 0.5m or more to facilitate the removal of fish excreta.
The cage setup: The river is about 3 centimeters in size, with 6 mesh meshes; 8 centimeters in size and 1.5 centimeters in mesh. The cage is 8 meters long, 5 meters wide and 2.5 meters high. Its upper mouth is 30 centimeters above the surface of the water. On the four sides of the cage, a 2-meter-long, 1 meter-wide food table is made of wood. In more open water, the cages are arranged in "product" shape, plum shape or "people" shape, and the distance between cages is 15 to 30 meters. If restricted by water conditions, the cages can only be arranged in a “one†shape on the side of the river. Each two cages should be organized into groups—each group should be separated by more than 50 meters. The cage area is approximately 4% of the surface of the water.
Fish stocking: Ten to fifteen days before stocking, cage water. Fish species require a strong body and neat specifications. When stocking, put the oxygen bag in the box for 15 minutes and release the fish when the water temperature in the bag is approximately the same as the temperature of the water body. The cross section is stocked with about 12 stocks per square meter. In order to prevent the breeding of moss in cages, a small amount of herbivorous fish should be used.
Feed feeding: timing, fixed-point, qualitative, quantitative feeding. In the box, the amount of water peanuts and other aquatic plants should be stocked, covering an area of ​​20%. One week before the river was stocked, the yellow soybean milk and bean dregs were splashed into cages to cultivate early feeds. After the river enters the box, the mixture of fish pulp and wheat flour (3:1 ratio) is fed and the amount fed is 10% of the fish's body weight. Feed every day at 9am and 4pm.
Day-to-day management: Requires "one diligence, two arrests, and three defenses." “A diligence: that is, diligent inspection. Daily morning, evening and evening check the cages are in good condition, repair broken and timely repair, observe the fish and water conditions, and find that abnormalities are dealt with promptly. “Two catchesâ€: wash the boxes at the right time The attachments on the mesh are washed cleanly, and the second-hand-picked case is moved in a timely manner, and when the position of the cage falls and on the eve of the flood season, the cage is promptly moved to safe waters. “Three defensesâ€: prevent fish diseases. The principle of “giving priority to prevention and controlâ€: fish species must be strictly disinfected before stocking, soaked in salt water for 3 minutes with 3%-5% fl spoon, fed disease-free live animal feed, and used 3% before feeding or before storage. -5% saline solution soak for about 15 minutes.Splash lime water once a month.Check the fish regularly,take up the fish every 10 days and dip in 2%-3% saline for 15 minutes. Flood prevention, loss of three defense cages, and prevention of damage to rats, otters, water birds, etc.
Out of the box to take the fish: fish species raised to a certain period of time, to reach the box and change the specifications of the box or develop commercial fish, out of the box. Small species that do not meet the specifications are returned to the original cages for rearing or boxing.
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