1. Clear pond: Transfer the fish species into ponds that have been sterilized in clear ponds. If the water source and the fishing pond are difficult to turn around, all the fish can be transferred out of stocking, and 75-100 kilograms of quick lime can be disinfected per acre of the original pond, and the water quality can be cultivated according to conventional methods. After the disappearance of the medicinal property, the fish species will be returned. .
2. Dividing and breeding: Adjust the seed stock according to different specifications, so that the specifications of the fish in the same pool are the same. Large-scale fish species, large food intake, grab strong food, as the pool stocking small-scale species, the fish will not get enough feed and physical decline. Fish species larger than 16 cm can be placed in adult fish ponds, and small fish species need special pool cultivation.
3. Thinning: In the autumn, the species should be reasonably dilute according to the size of the water surface and the water depth, so as to promote the growth of the species and increase the survival rate of overwintering. For ponds with a depth of 1.5 meters, put a total of 4000-6000 fishes of 7-8 cm in size per acre, and grow to 13-17 cm in length at the end of the year.
4. Feeding: In the autumn, the temperature is stable, the temperature of the water changes day and night, the fish feed is large, and the growth is rapid. Feed must be guaranteed. For grass-breeding fish species, fish ponds with cockroaches and squid should be fed mainly with green fodder. Concentrates should be properly fed and 1.5-2.5 kilograms of duckweed should be fed every 10,000 grass fingerlings. First cast green fodder, and then concentrate on fodder to prevent grass carp from competing with other fish. Feeding should be guaranteed, quantitative, timing, and positioning. The fish ponds of polyculture and carp should be fertilized on a regular basis, applied once every 10-15 days, and the manure of fermented manure should be 70-90 kilograms, and the transparency of the pool water should be maintained at 30-35 centimeters. The species of grass carp, carp species, and grass carp species should be dominated by fertilization and supplemented by feeding. Except for the use of basal fertiliser, a top dressing should be applied every 5-10 days. 100 kilograms. At the same time, 2-4 kilograms of fine material are fed per 10,000 fish species per day. For grass carp, 60-90 kilograms of fodder will be cast per 10,000 grass carp before consignment.
5, patrol pool: During the cultivation of fish species to adhere to the daily tour pool, observe the fish's feeding and living conditions, add new water once a week. It is necessary to regularly clean the food field, remove the residue leftover bait in time, and sterilize it with 500 grams of bleaching powder and sprinkle with water every half a month. Feed the baits regularly, preferably twice a month, for 3 consecutive days.