First, the disinfection of clear ponds, a full application of the bottom of the fertilizer before the fish pond, to clear the drainage channels, remove the pool of mud. When water depth is 20 centimeters, per acre (1 acre = 1/15 hectare, the same below) fish ponds use 100 kilograms of quicklime to sterilize, kill pests, bacteria, and microorganisms, and then apply 500 kilograms of decomposed human and animal manure as base fertilizer. Then the water depth is 2-2.5 meters. After one week, the drug disappears and the fish is released.
Second, to increase the stocking size, the "Kijin two species of fish," the large-scale species of high survival rate of fish species, the absolute increase in the amount of large, and can protect the withdrawal of the product specifications of the pond. Therefore, the stocking size is preferably 200-400 grams of grass carp, 100-300 grams of carp, and 50-150 grams of carp.
Third, a reasonable mix of polyculture, the implementation of three-dimensional fish in order to make full use of water space and natural food, must be based on the upper, middle and lower three-dimensional culture of quail, tilapia and other "fat fish" and grass, grasshoppers, oysters and other "eating fish ". Two hundred and twenty-five thousand fish species are stocked per acre, of which 40% are grass carp. 40% of the chain, 鲤, 鲫, 鲂, tilapia accounted for 20%, the total stocking rate of about 150 per mu.
4. Feed compounded feed and stick to intensive culture. According to the physiology and life requirements of fish, use wheat bran, rice bran, bean cake, flour, distiller's grains, minerals, vitamins and fish medicines to make mixed feed. Feeding, improve feed efficiency. Each year, mu is fed with 1500 kg. At the same time, ryegrass and Sudan grass were planted, saliva was harvested, duckweed was raised and grass carp was raised and fed 2-3 times a day.
Fifth, timely application of topdressing, training of natural food When the temperature is low, we must focus on the cultivation of plankton suitable for "fat fish" feeding. Promote rapid growth of salmon. Apply fertilizer once every 2-3 days, 100-150 kilograms of perishable human-animal species per mu. The temperature in summer increases, and it is easy to flood the pond with fertilizers from farms. Fertilizer can be applied to the fertilizer and applied every 5-7 days. Each time, 2.5-5 kilograms of fertilizer are used per mu.
6. Set specifications fish species, catch large in phases, and scientifically design the stocking, nesting, number and number of catches of the fish species, implement round catches and rounds, catch and keep large and small in three times each year, and can collect 500-600 Kilo, to achieve a balanced listing, the remaining fish after the fall out of the pond. At the end of July, 6-10 cm of small fingerlings will be raised to prepare for the cultivation of large-size fish species in the next year.
Seven, a flexible boot oxygen, water adjustment water quality in summer and autumn, the configuration of 2 kilowatts aerator, timely start oxygen, to ensure that there is enough dissolved oxygen in the water. At the same time, new water is often rushed in to improve water quality and facilitate the growth of grass carp.
Eight, turn drugs in a timely manner, timely prevention and treatment of fish disease in the high-temperature period every second half mu 10ml lime, or 90% crystal trichlorfon 250-350 grams slurry splashing, while on the fish's floating bait stage hanging bleach or sulfuric acid Ketones and ferrous sulfate drugs were used to sterilize the food field. In the epidemic season of grass carp intestine disease, every 100 kilograms of grass carp is mixed and fed with 0.5 kilograms of garlic head and bait, and it is fed for 3-6 days to prevent grass carp inflammation.
Second, to increase the stocking size, the "Kijin two species of fish," the large-scale species of high survival rate of fish species, the absolute increase in the amount of large, and can protect the withdrawal of the product specifications of the pond. Therefore, the stocking size is preferably 200-400 grams of grass carp, 100-300 grams of carp, and 50-150 grams of carp.
Third, a reasonable mix of polyculture, the implementation of three-dimensional fish in order to make full use of water space and natural food, must be based on the upper, middle and lower three-dimensional culture of quail, tilapia and other "fat fish" and grass, grasshoppers, oysters and other "eating fish ". Two hundred and twenty-five thousand fish species are stocked per acre, of which 40% are grass carp. 40% of the chain, 鲤, 鲫, 鲂, tilapia accounted for 20%, the total stocking rate of about 150 per mu.
4. Feed compounded feed and stick to intensive culture. According to the physiology and life requirements of fish, use wheat bran, rice bran, bean cake, flour, distiller's grains, minerals, vitamins and fish medicines to make mixed feed. Feeding, improve feed efficiency. Each year, mu is fed with 1500 kg. At the same time, ryegrass and Sudan grass were planted, saliva was harvested, duckweed was raised and grass carp was raised and fed 2-3 times a day.
Fifth, timely application of topdressing, training of natural food When the temperature is low, we must focus on the cultivation of plankton suitable for "fat fish" feeding. Promote rapid growth of salmon. Apply fertilizer once every 2-3 days, 100-150 kilograms of perishable human-animal species per mu. The temperature in summer increases, and it is easy to flood the pond with fertilizers from farms. Fertilizer can be applied to the fertilizer and applied every 5-7 days. Each time, 2.5-5 kilograms of fertilizer are used per mu.
6. Set specifications fish species, catch large in phases, and scientifically design the stocking, nesting, number and number of catches of the fish species, implement round catches and rounds, catch and keep large and small in three times each year, and can collect 500-600 Kilo, to achieve a balanced listing, the remaining fish after the fall out of the pond. At the end of July, 6-10 cm of small fingerlings will be raised to prepare for the cultivation of large-size fish species in the next year.
Seven, a flexible boot oxygen, water adjustment water quality in summer and autumn, the configuration of 2 kilowatts aerator, timely start oxygen, to ensure that there is enough dissolved oxygen in the water. At the same time, new water is often rushed in to improve water quality and facilitate the growth of grass carp.
Eight, turn drugs in a timely manner, timely prevention and treatment of fish disease in the high-temperature period every second half mu 10ml lime, or 90% crystal trichlorfon 250-350 grams slurry splashing, while on the fish's floating bait stage hanging bleach or sulfuric acid Ketones and ferrous sulfate drugs were used to sterilize the food field. In the epidemic season of grass carp intestine disease, every 100 kilograms of grass carp is mixed and fed with 0.5 kilograms of garlic head and bait, and it is fed for 3-6 days to prevent grass carp inflammation.
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