Channel catfish pond culture technology

Channel catfish grow very quickly. The fry hatched in the summer of that year can generally reach 15-25 centimeters by the end of the year. Under intensive culture conditions, the tail weight can reach about 0.8-1 kilograms in the second year. 1 Pond conditions The pond is generally required to be rectangular, oriented east-west, preferably 3350-13400 square meters, and water depth 1.6-2.2 meters. 15 days before stocking fish species, clear the pond silt, keep the water depth 6-10 centimeters, and use 60-100 kilograms of quicklime per 667 square meters for disinfection. Channel catfish fry 800-1200 should be stocked per 667 square meters, with a specification of 30-50g each, and 25g should be stocked at the same time. The range of feed nutritional requirements for catfish is: protein 32%-36%, fat 7.0%-8.0%, carbohydrates 12.5%, 20.0%, fiber 2 times a day, and the acclimation time each time is 30 minutes. 4, daily management (1) patrol the pond. The water color is too thick and the transparency is lower than 25 centimeters. New water should be added in time. ①Adhere to the principle of giving priority to prevention and prevention is better than cure. ② Hemorrhagic disease: Sprinkle chlorine dioxide throughout the pool to make the pool water 0.3-0.4 mg/kg. 7, Harvest ① Fishing: By the end of 8, some catfish have reached market size and can be harvested and put on the market to allow small-sized catfish to grow and increase net production. Feed should be fresh and not moldy or expired to prevent the occurrence of fish diseases.