Cage culture shrimp has the characteristics of low investment, short breeding cycle, high yield, and generally yields more than 250 kg per mu. The shrimp cage culture technology is introduced as follows:
First, the cage structure and equipment cage should be set in the fresh water, dissolved oxygen, no pollution, slow water flow, water level drop within 1 meter, away from the fairway waters. The mesh size of the polyethylene cage is 24 mesh/cm2, and the size is 10 meters, 6.67 meters and 1.3 meters. The cage is installed with an open floating type, 0.4 meters above the water surface, and the shrimp cage is 196 mesh above the water surface. Made of square centimeters of mesh, Shrimp Climb escapes. The box is stocked with 3 to 5 square meters of water hyacinth or water peanuts, so that the aquatic plants are arranged in the longitudinal direction of the box, but they must not cling to the escape prevention net. In the box, aquatic grasses can be used as bait stations and can provide shelter and shade places for shrimps. The tender roots can be used as the green feed for shrimps, and winter can be used as winter warming materials.
Second, the young fish breeding cages breeding cages, one year can raise summer and autumn two seasons, summer stocking wintering shrimp, specifications for the 1000/kg ~ 1800/kg, stocking density of 50,000/mu ~ 60,000/ Mu, stocking ends before April 20th. In autumn, the shrimps reared in the year of breeding from July 20 to August 10 are 2,000/kg to 5,000/kg, and the stocking density is 80,000/mu to 100,000/mu. Shrimp seedlings require pure varieties, robust physique, uniform specifications, complete appendages, and no disease-free injuries. Stocking should be carried out on a cloudy day or in the morning and in the evening, and should be sufficient at a time to avoid stocking in batches. During the stocking operation, we must keep the shrimps moist and prevent exposure. The time for the shrimps to leave the water must not exceed 5 minutes.
Third, bait feed shrimp feed to rice bran, wheat bran, wheat flour, with 20% of quail meat, silkworm cocoons, fish, clams and other animal food and a small amount of clam powder, shrimp crab shell powder, fish meal, bone meal system Into pelleted feed. Green prawns have nocturnal habits and like to disperse and feed at night. The daily feeding amount is generally 3% to 5% of the total weight of the shrimp in the storage tank. The specific daily feeding amount should also be based on the shrimp feeding conditions and weather changes. Feeding 2 times a day, including 30% in the morning and 70% in the afternoon after 5pm. If you use powdery baits, cast on the bar-shaped water grass. Cage culture of shrimp should actively promote the use of pelleted feeds, which can increase the utilization of feed and reduce the loss, and promote the growth of the shrimp. Usually, the bait coefficient is generally between 4.3 and 5.5.
Fourth, fishing and overwintering Due to the large individual differences in growth of shrimp, the harvest of shrimps needs to be picked up in batches. After one month in the summer, two months after the seedlings are released, two months later, Once a month. When the fish is picked, shrimps with an individual size of 2.5 g or more will be out of the box to facilitate the growth of small-size shrimp in the box and reduce the mutual residual food. The summer and autumn shrimps should be harvested before July 20 and November 20 respectively. The tank is washed twice a day and the cages are washed regularly to facilitate the exchange of water in the tank, increase the amount of oxygen in the water in the tank, and promote the growth of the shrimp. From December to March of next year, it is the overwintering period of shrimp, and shrimp cages can also double as cages for wintering, with 150 kg to 250 kg of shrimp per acre. The overwintering warming measure is to deepen the water level of the cages, move the cages to the sheltered sunny waters, and put 1,500 to 2,000 kilograms of peanuts or water hyacinths per acre of cages, and put brown chips or 250 to 300 kilograms of willow roots at the bottom of the tanks for shrimps. Lurking. During the winter, the shrimp are rarely active, but occasionally small amounts of food are eaten in the wind and warm weather. Therefore, some pelleted feeds should be given from time to time.
First, the cage structure and equipment cage should be set in the fresh water, dissolved oxygen, no pollution, slow water flow, water level drop within 1 meter, away from the fairway waters. The mesh size of the polyethylene cage is 24 mesh/cm2, and the size is 10 meters, 6.67 meters and 1.3 meters. The cage is installed with an open floating type, 0.4 meters above the water surface, and the shrimp cage is 196 mesh above the water surface. Made of square centimeters of mesh, Shrimp Climb escapes. The box is stocked with 3 to 5 square meters of water hyacinth or water peanuts, so that the aquatic plants are arranged in the longitudinal direction of the box, but they must not cling to the escape prevention net. In the box, aquatic grasses can be used as bait stations and can provide shelter and shade places for shrimps. The tender roots can be used as the green feed for shrimps, and winter can be used as winter warming materials.
Second, the young fish breeding cages breeding cages, one year can raise summer and autumn two seasons, summer stocking wintering shrimp, specifications for the 1000/kg ~ 1800/kg, stocking density of 50,000/mu ~ 60,000/ Mu, stocking ends before April 20th. In autumn, the shrimps reared in the year of breeding from July 20 to August 10 are 2,000/kg to 5,000/kg, and the stocking density is 80,000/mu to 100,000/mu. Shrimp seedlings require pure varieties, robust physique, uniform specifications, complete appendages, and no disease-free injuries. Stocking should be carried out on a cloudy day or in the morning and in the evening, and should be sufficient at a time to avoid stocking in batches. During the stocking operation, we must keep the shrimps moist and prevent exposure. The time for the shrimps to leave the water must not exceed 5 minutes.
Third, bait feed shrimp feed to rice bran, wheat bran, wheat flour, with 20% of quail meat, silkworm cocoons, fish, clams and other animal food and a small amount of clam powder, shrimp crab shell powder, fish meal, bone meal system Into pelleted feed. Green prawns have nocturnal habits and like to disperse and feed at night. The daily feeding amount is generally 3% to 5% of the total weight of the shrimp in the storage tank. The specific daily feeding amount should also be based on the shrimp feeding conditions and weather changes. Feeding 2 times a day, including 30% in the morning and 70% in the afternoon after 5pm. If you use powdery baits, cast on the bar-shaped water grass. Cage culture of shrimp should actively promote the use of pelleted feeds, which can increase the utilization of feed and reduce the loss, and promote the growth of the shrimp. Usually, the bait coefficient is generally between 4.3 and 5.5.
Fourth, fishing and overwintering Due to the large individual differences in growth of shrimp, the harvest of shrimps needs to be picked up in batches. After one month in the summer, two months after the seedlings are released, two months later, Once a month. When the fish is picked, shrimps with an individual size of 2.5 g or more will be out of the box to facilitate the growth of small-size shrimp in the box and reduce the mutual residual food. The summer and autumn shrimps should be harvested before July 20 and November 20 respectively. The tank is washed twice a day and the cages are washed regularly to facilitate the exchange of water in the tank, increase the amount of oxygen in the water in the tank, and promote the growth of the shrimp. From December to March of next year, it is the overwintering period of shrimp, and shrimp cages can also double as cages for wintering, with 150 kg to 250 kg of shrimp per acre. The overwintering warming measure is to deepen the water level of the cages, move the cages to the sheltered sunny waters, and put 1,500 to 2,000 kilograms of peanuts or water hyacinths per acre of cages, and put brown chips or 250 to 300 kilograms of willow roots at the bottom of the tanks for shrimps. Lurking. During the winter, the shrimp are rarely active, but occasionally small amounts of food are eaten in the wind and warm weather. Therefore, some pelleted feeds should be given from time to time.
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