Tilapia has good meat quality, fast growth, short breeding cycle, and good fishing effect. The breeding time is from May to September and the remaining time can be cultured.
(I) Tilapia culture
1. Strict Pond Disinfection In May, 75kg/mu of quicklime was used. After the slurry was discharged, the whole pool was disinfected, and water was added after disinfection. Each pond is equipped with an aerator and a feeder.
2. Reasonably stocked fingerlings are required to have neat specifications, robustness, and no injuries. In the beginning of May, 1,000 g/t tilapia (150 to 200 g/g), 250 to 300 g/tail catfish (200 tails/mu), and 400 g/head tail carp (50 fish/mu) will be stocked. When stocking, use 3% to 4% salt solution and soak for 5 minutes.
3, scientific feed feed accurately determine the amount of feeding, and according to the weather, water temperature, water quality, pool fish appetite and other flexible adjustments. Adjust the feeding amount every 10 to 15 days. Feed all tilapia pellet feeds. The crude protein requirement for feed is about 30%. The pellet size should be appropriate. Stick to the “Four Ding†feeding method. Usually feed 4 times a day, respectively, 8 o'clock, 11 o'clock, 14 o'clock, 17 o'clock. Time. The daily feeding rate is 2% to 4%.
4, timely adjustment of water quality First, every 10 days to the pond into the new water 10 to 20 cm, so that pool water to maintain fat, live, tender, cool. The second is to open the aerator according to the weather and water quality to ensure that the pond is rich in dissolved oxygen. In the middle and late period of breeding, it should be turned on for 1-2 hours every morning and at noon. When the temperature is high, the air pressure is low, and the floating head is severe, the boot time must be extended to prevent Hypoxia flooding occurs. The third is to splash lime every 25 months to adjust water quality at 25 g/m3.
5, strengthen the daily management, do a good job in prevention and treatment of fish disease First, insist on daily morning, middle and evening patrol pond, observe whether the fish pond floating phenomenon, check the eating situation. The second is the regular foodstuffs disinfection, bleaching powder and copper sulphate, ferrous sulfate sag bag used interchangeably, and every half of Quanchiposa bleach 1 g / cubic meter.
(b) Trout farming
1. Fish Breeding In May, special carp cultivation for carp seedlings will be conducted. There will be 2000 rearing stocks per acre with some carp. By September, the carp species size will reach 300 grams or more.
2. Feeding and management of fingerlings Feed the special pellet feed for quail fingerlings 4 times a day at 8 hours, 11 hours, 14 hours, and 17 hours. The daily feed amount is 2.5% to 8% of the total fish species. The increasing size of fish species gradually reduces the daily feeding rate. In the summer hot season, new water 15 cm in height is added every 10 days, and lime water 25 g/m3 is regulated every half month. In the epidemic season of fish diseases, feeding baits are used to prevent fish diseases. At noon, the time for opening the aerator is 1 to 2 hours. In the later period of fish breeding, the amount of ponds is large and the water temperature is high. In the early morning, aerators are also opened for 1 to 2 hours.
3. After the fish species have been stocked and tilapia is caught, 5 kg bleaching powder per acre shall be used to disinfect the whole pool, and fish should be added after 5 days. 700 acre stockings per acre, specifications more than 300 grams, 150 species of carp fish, specifications 350 grams or more. For fish species, dip 3% to 4% salt solution for 5 minutes.
4. After feeding and managing the fish species Dingtang, the special pellet feed for squid should be fed 2 to 3 times a day, at 9 o'clock, 13 o'clock and 17 o'clock respectively, and the daily feeding amount should be 1% to 2% of the total carp weight. After eating for the following year, they are fed 1 to 3 times a day, and as the water temperature rises, the amount of feeding is continuously increased. Strengthen winter management during the ice-sealing period. Pay attention to adding water and snow to prevent death from hypoxia.
5, disease prevention and control 20 days splash lime 25 grams / cubic meter 1, the next spill bleach 1 g / cubic meter, cross-over.
Through experiments, we believe that the following three points should be addressed: First, to ensure that the specifications of stocking species meet the requirements; Second, the male rate of tilapia reaches more than 95%; Third, to feed high-quality special pellet feed, scientific management, as short as possible The tilapia culture cycle ensures that the main fish meets the market specifications.
(I) Tilapia culture
1. Strict Pond Disinfection In May, 75kg/mu of quicklime was used. After the slurry was discharged, the whole pool was disinfected, and water was added after disinfection. Each pond is equipped with an aerator and a feeder.
2. Reasonably stocked fingerlings are required to have neat specifications, robustness, and no injuries. In the beginning of May, 1,000 g/t tilapia (150 to 200 g/g), 250 to 300 g/tail catfish (200 tails/mu), and 400 g/head tail carp (50 fish/mu) will be stocked. When stocking, use 3% to 4% salt solution and soak for 5 minutes.
3, scientific feed feed accurately determine the amount of feeding, and according to the weather, water temperature, water quality, pool fish appetite and other flexible adjustments. Adjust the feeding amount every 10 to 15 days. Feed all tilapia pellet feeds. The crude protein requirement for feed is about 30%. The pellet size should be appropriate. Stick to the “Four Ding†feeding method. Usually feed 4 times a day, respectively, 8 o'clock, 11 o'clock, 14 o'clock, 17 o'clock. Time. The daily feeding rate is 2% to 4%.
4, timely adjustment of water quality First, every 10 days to the pond into the new water 10 to 20 cm, so that pool water to maintain fat, live, tender, cool. The second is to open the aerator according to the weather and water quality to ensure that the pond is rich in dissolved oxygen. In the middle and late period of breeding, it should be turned on for 1-2 hours every morning and at noon. When the temperature is high, the air pressure is low, and the floating head is severe, the boot time must be extended to prevent Hypoxia flooding occurs. The third is to splash lime every 25 months to adjust water quality at 25 g/m3.
5, strengthen the daily management, do a good job in prevention and treatment of fish disease First, insist on daily morning, middle and evening patrol pond, observe whether the fish pond floating phenomenon, check the eating situation. The second is the regular foodstuffs disinfection, bleaching powder and copper sulphate, ferrous sulfate sag bag used interchangeably, and every half of Quanchiposa bleach 1 g / cubic meter.
(b) Trout farming
1. Fish Breeding In May, special carp cultivation for carp seedlings will be conducted. There will be 2000 rearing stocks per acre with some carp. By September, the carp species size will reach 300 grams or more.
2. Feeding and management of fingerlings Feed the special pellet feed for quail fingerlings 4 times a day at 8 hours, 11 hours, 14 hours, and 17 hours. The daily feed amount is 2.5% to 8% of the total fish species. The increasing size of fish species gradually reduces the daily feeding rate. In the summer hot season, new water 15 cm in height is added every 10 days, and lime water 25 g/m3 is regulated every half month. In the epidemic season of fish diseases, feeding baits are used to prevent fish diseases. At noon, the time for opening the aerator is 1 to 2 hours. In the later period of fish breeding, the amount of ponds is large and the water temperature is high. In the early morning, aerators are also opened for 1 to 2 hours.
3. After the fish species have been stocked and tilapia is caught, 5 kg bleaching powder per acre shall be used to disinfect the whole pool, and fish should be added after 5 days. 700 acre stockings per acre, specifications more than 300 grams, 150 species of carp fish, specifications 350 grams or more. For fish species, dip 3% to 4% salt solution for 5 minutes.
4. After feeding and managing the fish species Dingtang, the special pellet feed for squid should be fed 2 to 3 times a day, at 9 o'clock, 13 o'clock and 17 o'clock respectively, and the daily feeding amount should be 1% to 2% of the total carp weight. After eating for the following year, they are fed 1 to 3 times a day, and as the water temperature rises, the amount of feeding is continuously increased. Strengthen winter management during the ice-sealing period. Pay attention to adding water and snow to prevent death from hypoxia.
5, disease prevention and control 20 days splash lime 25 grams / cubic meter 1, the next spill bleach 1 g / cubic meter, cross-over.
Through experiments, we believe that the following three points should be addressed: First, to ensure that the specifications of stocking species meet the requirements; Second, the male rate of tilapia reaches more than 95%; Third, to feed high-quality special pellet feed, scientific management, as short as possible The tilapia culture cycle ensures that the main fish meets the market specifications.
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