Red prawn has strong adaptability, large individuals and fast growth. It resembles lobsters, has delicious meat, and has simple farming techniques and high economic value. The shrimp is generally produced at a rate of 100-200 kilograms per 1-15 hectares (1 mu) and can be up to 402 kilograms. The price per kilogram is 40-60 yuan. The pond cultivation techniques are now described as follows: Biological characteristics

The shrimp is a tropical shrimp, the survival temperature is 6 - 37 °C, the optimal growth temperature is 22 - 32 °C, the appropriate pH value of 6 - 8. Dissolved oxygen above 4 mg/l. Fear of strong light, hi light, and frequent night activities. Is omnivorous shrimps, which are similar in the lack of food. Feeding bait under captive feeding conditions. The growth rate of shrimp is affected by environmental conditions, especially food and water temperature. The food is rich, the water temperature is suitable, the growth rate is fast, and vice versa.

Pond preparation

Shrimp ponds require a quiet environment, plenty of water, and convenient drainage and irrigation. Each pond has an area of ​​0.07 - 0.33 hectares (1 - 5 mu) and a water depth of 1 - 1.2 meters. The bottom of the pool is flat, with less silt, sandy, and certain shallow water areas. The pool is a gentle slope. More than 1/3 of the pond's water surface is planted with aquatic plants such as black-leaf algae and water peanuts. Piles of rubble or used tires are piled around the pond to provide artificial nests for the shrimp. Around the pond is a 30-50 cm high anti-patrol wall.

Seed stocking

For ponds that have been used for many years, excessive silt should be removed, drainage channels must be dredged, and dams should be reinforced. Before putting shrimp, use the same method as fish farming to disinfect. In the case of dry ponds, 150-200 kg of lime are applied per 1/15 hectares to sprinkle the hydrated pulp and the hot water. After 7 days of disinfection, the drug properties disappeared, and 100-300 kg of fermented manure, such as cow dung and chicken dung, was applied every 1/15 ha. At the same time as fertilizing, fill the pool with water 30 to 50 centimeters deep, add water to 80 centimeters deep after 5 days. When water is injected, it must be filtered with a dense mesh. Aquatic plants must be temporarily stored and sterilized before they are cultivated to prevent the entry of wild fish eggs and harmful organisms. Shrimp seedlings (species) are generally stocked in mid-to-late May, when the water temperature is stable above 18°C. Care should be taken to select sunny weather. Sun exposure should be avoided during transportation. Should choose physical health, no injuries, consistent specifications of the seed. Before stocking, the temperature difference between the wintering ground and the shrimp pond should be within 3°C, and the shrimp seedlings should be disinfected with a bleaching powder solution having a concentration of 1 mg/kg. Seed stocking density can be determined according to pond conditions, seed specifications, technical level, etc. as appropriate. In the early years, the bacteria were usually 3–5 cm long and weighed 1.5 grams/tail. Each 1/15 hectare could hold 3,000–5000 tails. The survival rate could reach 60%, and it could be up to 50 in October. 100 g/tail. Overwintering shrimp species have a body weight of 10 to 15 grams per tail. Each 1/15 hectare can be stocked with 2,000 to 3,000 fish. The survival rate is 80%, and shrimps grown in that year can reach a size of 100 grams or more. The pool can also be used with a certain number of flowers and white fish. In general, 150-200 kg can be produced per 1/15 hectare, and seedlings should be uniformly distributed around the pond.

Scientific feeding

Under artificial breeding conditions, artificially supplemented pellet feeds should be fed, and fish, shrimp, grains, and vegetables should be appropriately matched. In the early stage of planting, the protein content of bait should be 30% - 35% and the particle size should be 0.5 - 0.6mm. In the middle and late stages of development, the dietary protein content is 25% - 30% and the particle size is 2 - 3 mm. In the shallow water area around the pond, there are multiple feeding areas. The daily feeding amount can be gradually reduced with the growth of the shrimp body, and the amount of the feed is 3% to 5% of the total weight of the shrimp. Generally, the feeding amount is 3 times per day, and the time is 6 to 7 o'clock in the morning and 4 to 6 o'clock in the afternoon. At 9pm. Since the shrimp likes to feed at night, the night feeding amount should account for about 70% of the total feeding amount. In ponds with many plants and biomass, the feeding amount should be appropriately reduced, and the feeding amount should also be based on the weather and water quality. The situation of shrimp and other activities increase or decrease as appropriate. Since the shrimp likes diverse foods and does not like to eat a feed for a long period of time, it should be fed 2 to 3 times a week, such as vegetables and small fish and shrimp.

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