First, the production and placement of small cages The skeletons of cages can generally be divided into two types: metal cages and bamboo cages. The nets for making cages are sewn with 10mm polyethylene mesh sheets. The specifications of small cages are generally 1m X 1m X 1m, 2m X 2m X 1m, and 2m X 1m X 1m. In order to enable the fish in the cage to use all the fed feed, a floating bait device can be installed on the top of the cage. The shape is a wooden box shape. The top and the bottom of the cage are open and can be placed at the center of the top of the cage. The top should be above the water surface (fixed with buoyant material) so that feed can be fed to it. The bottom of the unit is connected to the Ding page section of the cage. The area of ​​the bait unit should be 20% of the entire cage area.
The cage placement method may be a fixed cage or a floating fully-enclosed cage. Here is a description of the placement method of the floating fully enclosed cage. When installing the cages, first connect 5 to 6 small cages as a group (each two small cages have a spacing of 3 to 5 meters) and then put them into the water as a group. The height of the cage should be above the surface of the water. It is about 50 centimeters (thus requiring the entire body of water to be more than 2 meters deep), and then anchored with an anchor; the group is arranged in parallel with the group, in order to better exchange water, the best line spacing between the group and the group is 10 More than meters.
2. When the temperature of the water reaches 10°C or more, and the cage is properly set in the water, the fish species can begin to be thrown into cages at a stocking density of about 5 kg per cubic metre of water. , each weighing 30-40 grams. Fish species placed in cages should be checked to ensure that they are free from disease, and the weight of each fish should be roughly consistent.
Third, feed feeding and daily management cage culture Peng Zexi use puffed pellet feed, particle size and the individual size of the fish to adapt, the daily feed amount can be divided into 2 to 4 feed into the bait device. The amount of feeding should increase with the growth of fish. The specific approach is: the amount of feed is equal to 70% to 80% of the amount of fish eaten, and some fish are sampled weekly for operation to check the degree of satiation. Next week's feed increase. At the beginning of feeding, certain sounds can be given so that conditioned reflexes can be formed when the fishes eat, so as to develop the habit of regular feeding.
The daily management of Peng Zeyu, a small cage culture, first paid attention to the dissolved oxygen status of the water and the status of the water body being contaminated. In cage-fed fish farming in oligotrophic waters, there will generally be no shortage of dissolved oxygen. Second, use high-quality feeds to ensure the healthy growth of fish and increase disease resistance. In the event of fish disease, remove diseased fish from cages immediately to prevent cross-contamination and healthy fish stocks, and carefully examine the causes for the disease. Reasonable treatment.
The cage placement method may be a fixed cage or a floating fully-enclosed cage. Here is a description of the placement method of the floating fully enclosed cage. When installing the cages, first connect 5 to 6 small cages as a group (each two small cages have a spacing of 3 to 5 meters) and then put them into the water as a group. The height of the cage should be above the surface of the water. It is about 50 centimeters (thus requiring the entire body of water to be more than 2 meters deep), and then anchored with an anchor; the group is arranged in parallel with the group, in order to better exchange water, the best line spacing between the group and the group is 10 More than meters.
2. When the temperature of the water reaches 10°C or more, and the cage is properly set in the water, the fish species can begin to be thrown into cages at a stocking density of about 5 kg per cubic metre of water. , each weighing 30-40 grams. Fish species placed in cages should be checked to ensure that they are free from disease, and the weight of each fish should be roughly consistent.
Third, feed feeding and daily management cage culture Peng Zexi use puffed pellet feed, particle size and the individual size of the fish to adapt, the daily feed amount can be divided into 2 to 4 feed into the bait device. The amount of feeding should increase with the growth of fish. The specific approach is: the amount of feed is equal to 70% to 80% of the amount of fish eaten, and some fish are sampled weekly for operation to check the degree of satiation. Next week's feed increase. At the beginning of feeding, certain sounds can be given so that conditioned reflexes can be formed when the fishes eat, so as to develop the habit of regular feeding.
The daily management of Peng Zeyu, a small cage culture, first paid attention to the dissolved oxygen status of the water and the status of the water body being contaminated. In cage-fed fish farming in oligotrophic waters, there will generally be no shortage of dissolved oxygen. Second, use high-quality feeds to ensure the healthy growth of fish and increase disease resistance. In the event of fish disease, remove diseased fish from cages immediately to prevent cross-contamination and healthy fish stocks, and carefully examine the causes for the disease. Reasonable treatment.
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