Penaeus vannamei originates from the west coast of the Pacific Ocean to the middle of the Gulf of Mexico. Penaeus vannamei has a beautiful body shape, thin head shell, high meat yield, tender and delicious, and rich nutrition. With the features of fast growth, short breeding cycle, wide adaptability of salinity, miscellaneous food, easy to solve bait and so on, it is suitable for artificial high density sea freshwater aquaculture. Especially freshwater aquaculture can reduce diseases more effectively than marine aquaculture. Penaeus vannamei is one of the three fine shrimp species that have the highest aquaculture production in the world today, and it is also a very popular shrimp species in the international fish market.
The optimal growth temperature of Penaeus vannamei was 22-35°C, and its ability to adapt to low temperature was poor. Water temperature was lower than 18°C, and its feeding activity was affected. When the temperature was lower than 9°C, it could not be overwintered in Jiangsu. In order to avoid centralized catching, it is necessary to take advantage of its fast growth (commercial shrimp that can be cultivated for 10 to 12 centimeters and weights of 10 to 15 grams after 60 days of feeding) and adopt two batches a year for catching in batches. Listing, implement a balanced supply, increase sales prices.
1. Estimated investment per mu (1) 200 yuan for aerator (depreciation)
(2) 200 yuan for drainage and drainage system (3) 1,000 yuan for seeds (4) 1,000 yuan for bait (5) 200 yuan for utilities (6) 200 yuan for clear ponds and disease-prevention medicines. Total investment is 2800 yuan.
2. Benefit analysis per mu (1) Output 200 kg (2) Output value 30 yuan 200 = 6000 yuan (3) Profit 6,000 yuan - 2800 yuan = 3200 yuan
3. The main technologies and measures: First, dredging the whole pool, using 10-15 kg of tea seed cake per mu, or disinfection of 5-6 kg of strong chlorine, clear pond; Second, the cultivation of food organisms, water 50-60cm, Mushi maturity Organic manure 100 kg or urea 1.5-2 kg; Third, the pool of water salinity treatment, freshwater aquaculture before the release of 1-2 days per acre with salt 100-150 kg; Fourth, the stocking stocking, the general acres of seedlings in 1.5-3 million tails; Fifth is feeding management, mainly with feed (prawn feed), supplemented by animal feed; generally weighing 10 grams before, feeding weight 8-10%, weight 10-15 grams , The feeding amount is 4-8%, the weight is more than 16 grams, the feeding amount is 3-4%, and the feeding rate is 2-4 times a day. The sixth is water quality management. In the early stage, water is gradually added to the pool. In the middle and later periods, the water quality is changed appropriately, and the water must be replaced with a filter.
The optimal growth temperature of Penaeus vannamei was 22-35°C, and its ability to adapt to low temperature was poor. Water temperature was lower than 18°C, and its feeding activity was affected. When the temperature was lower than 9°C, it could not be overwintered in Jiangsu. In order to avoid centralized catching, it is necessary to take advantage of its fast growth (commercial shrimp that can be cultivated for 10 to 12 centimeters and weights of 10 to 15 grams after 60 days of feeding) and adopt two batches a year for catching in batches. Listing, implement a balanced supply, increase sales prices.
1. Estimated investment per mu (1) 200 yuan for aerator (depreciation)
(2) 200 yuan for drainage and drainage system (3) 1,000 yuan for seeds (4) 1,000 yuan for bait (5) 200 yuan for utilities (6) 200 yuan for clear ponds and disease-prevention medicines. Total investment is 2800 yuan.
2. Benefit analysis per mu (1) Output 200 kg (2) Output value 30 yuan 200 = 6000 yuan (3) Profit 6,000 yuan - 2800 yuan = 3200 yuan
3. The main technologies and measures: First, dredging the whole pool, using 10-15 kg of tea seed cake per mu, or disinfection of 5-6 kg of strong chlorine, clear pond; Second, the cultivation of food organisms, water 50-60cm, Mushi maturity Organic manure 100 kg or urea 1.5-2 kg; Third, the pool of water salinity treatment, freshwater aquaculture before the release of 1-2 days per acre with salt 100-150 kg; Fourth, the stocking stocking, the general acres of seedlings in 1.5-3 million tails; Fifth is feeding management, mainly with feed (prawn feed), supplemented by animal feed; generally weighing 10 grams before, feeding weight 8-10%, weight 10-15 grams , The feeding amount is 4-8%, the weight is more than 16 grams, the feeding amount is 3-4%, and the feeding rate is 2-4 times a day. The sixth is water quality management. In the early stage, water is gradually added to the pool. In the middle and later periods, the water quality is changed appropriately, and the water must be replaced with a filter.