How does the reservoir raise shrimp

Net cage structure Net cages should be installed in waters with fresh water, rich dissolved oxygen, no pollution, slow water flow, and a water level within 1 meter away from the fairway. The mesh of the polyethylene cage is 24 mesh/cm2 or 30 mesh/cm2, and the size is 10 meters, 6.67 meters, 1.3 meters or the specification is 8 meters in length, 5 meters in width and 1.5 meters in height. The cage installation method is as follows: The cage is installed into an open floating type, which is 0.4 meters above the water surface. The shrimp cage is over the water surface and is made of a net cloth of 196 meshes per square centimeter, preventing the shrimp from climbing and running away. The boxes are stocked with 3 to 5 square meters of water hyacinth or water peanuts. 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 grass can be used as a bait station and can provide a habitat for shrimp. Its tender root can be used as a green feed for shrimps, and winter can be used as a winter warming material. Method two: The cage is placed in the water and it is required to be able to move freely with the change of the water level. Concretely, four bamboo groves of 8 meters in length and 5 meters in width are used to bind bamboo groves with a diameter of 5 centimeters in the four corners of the bamboo frame. One 1.5 metre bamboo tip is inserted in the hole and the insertion hole is 1 metre. The bottom of the bamboo tip is fitted with a simple pulley. The tethers around the bottom of the cage are respectively fixed on the bamboo frame by pulleys; the upper corners of the cage are tied at the upper end of the bamboo tip with the four corner tethers and the bamboo tip, and the network walls are every other wall of the cage. The rice is tied to a bamboo pole 1.5 meters long. The upper end of the bamboo raft is fastened to the upper end of the cage. The lower end of the bamboo raft is fastened to the bottom rope of the box. The bamboo raft is fastened to the four corners of the cage. The lower end enters the mud and the upper end exposes the water. Then The top of the bamboo cage on the cage is tied with a bamboo pile with a rope cover so that the cage is sunk 1 meter into the water, and the cage exposes the water 0.5 meters to prevent the shrimp from running away. Set up a large area of ​​box, box distance of 3 meters, 4 meters spacing is better. Breeding cages for raising shrimp in stocking cages can raise summer and autumn in one year, and overwintering shrimps in summer, with a size of 1000-1800/kg, and a stocking density of 50,000-60,000/mu, before April 20th. Restocking is over. The fall culture will be stocked from July 20 to August 10. The shrimps that were bred in that year will have a size of 2000-5000/kg and a stocking density of 8-100,000/mu. Shrimp seedlings require pure varieties, robust physique, uniform specifications, complete limbs, 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. Feeds for shrimps are mainly rice bran, wheat bran and wheat flour. They are made of 20% of animal food such as peck meat, silkworm pupae, miscellaneous fish, earthworms, etc., and a small amount of clam shell powder, shrimp crab shell powder, fish meal, and bone meal. Formulated 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 flexibly controlled based on the shrimp's 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. Due to the large differences in individual growth of the shrimp between winter fishing and overwintering, the harvest of adult shrimps needs to be picked up in batches. After 1 month of releasing the seedlings in the summer and 2 months after the seedlings are released in the fall, the fisherman begins to capture, and then every half month later. Times. Picking shrimp out of the box is conducive to the growth of small shrimp in the box and reduces 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 the following year, it is the wintering period of the shrimps. Adult cages of shrimps can also double as cages for wintering, and 150-250 kilograms of shrimps are stocked per acre. Winter warming measures are to deepen the cage water level, move the cages to the sheltered sunny waters, put 1500-2000 kilograms of water peanuts or water hyacinths per acre cages, put brown pieces or 250-300 kilograms of willow roots at the bottom of the box, for shrimps to lurk. During the winter, the shrimp are rarely active, but they occasionally take small amounts of food in sunny weather. Therefore, some pelleted feeds should be given occasionally.

 Starch sugar is the sugar produced by starch as the raw material and the enzyme preparation is widely used in the preduction of starch sugar. The enzyme method has unique advantages comparing with the traditional acid hydrolysis of starch. The enzymatic reaction can carry out efficiently under the conditions of normal temperature, normal pressure and mild acidity. Enzyme method can simplify production equipment, improve labor conditions and reduce cost.  The enzyme itself is a protein and nontoxic. Enzyme is very sensitive to the pH value, and the reaction can be controlled by simply adjusting the acidity and alkalinity, changing the reaction temperature or adding inhibitors. The main liquefying enzyme is α-Amylase and the saccharifying enzymes include α-Amylase and Glucoamylase. 

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This product should be stored in a cool and dry place in sealed container, avoiding insolation, high temperature and damp.  The product has been formulated for optimal stability. Extended storage or adverse conditions such as higher temperature or higher humidity may lead to a higher dosage requirement.


Enzyme preparations are proteins, which may induce sensitization and cause allergic type reactions in sensitized individuals. Prolonged contact may cause minor irritation for skin, eyes or nasal mucosa, so any direct contiguity with human body should be avoided. If irritation or allergic response for skin or eyes develops, consult a doctor.

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