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Autumn fish species management caught five
The suitable temperature for autumn is the peak season for fish growth. The management of autumn fish species should focus on five tasks: clear ponds, sub-cultivation, sparse breeding, feeding, and pool inspection. First, clear pond. The fish species were transferred to ponds sterilized in clear ponds for cultivation. Where water and fish ponds are difficult to turn around, all the fish can be transferred out of stocking, and 75-100 kg of quick lime can be disinfected per acre of the original pond, and the water can be fertilized according to conventional methods. Kind of turn back. Second, divided education. The fish species will be adjusted and divided according to different specifications, so that the specifications of the fish species put in the same pool are the same. Because large-scale fish species have large food intake and strong grab power, if small-scale fish species are placed at the same time, the fish will lose their body feed due to insufficient feed. Fish species above 16 cm can be placed in fish ponds, and small fish species need special pool cultivation. Third, thin. It is an important part of raising the survival rate of wintering fishes that large-sized fish species are bred in autumn. Should be based on the size of the water, water depth and other conditions, a reasonable dilute, and promote the growth of fingerlings. Water depth of 1.5 meters in the pond, acres of 7-8 cm fish species 4000-6000 tail, rearing body length up to 13-17 cm. Fourth, feeding. In the autumn, the climate is stable, the water temperature changes little day and night, and the fish species have large food intake and rapid growth. Feed must be guaranteed. In the case of grass-breeding fish species, with the oyster and squid fish species pools, caster feed should be used, and concentrates should be properly fed. Every day, ten thousand grass carp species are fed with 1.5-2.5 kg of duckweed. First cast a green feed, and then concentrate on the fodder to avoid eating grass carp and other fish. Feeding should be guaranteed, quantitative, timing, and positioning. For the polyculture of cockroaches and squid, fertilize regularly and fertilize once every 10 to 15 days. Fertilize 70-90 kilograms of fermented man-fag per acre. Pool water transparency is maintained at 30-35 cm. In order to use grass carp as the main species for carp and carp species, fertilization should be given priority, and feeding should be supplemented. In addition to the use of basal fertiliser, fertilizer is applied once every 5-10 days, and 80-100 kg of man-made animal manure is applied per acre. At the same time, 2-4 kilograms of fine material per 10,000 fish species are to be cast every day. For grass carp, 60-90 kilograms of fodder will be fodder per 10,000 grass carp before consubstantial feed. Fifth, the patrol pool. During the cultivation of fingerlings, it is necessary to insist on daily patrols to observe the fish’s feeding and living conditions, change new water, and add new water once a week. The food field should be cleaned regularly, and the residue should be removed in time. Every half month, bleaching powder o.5 kilograms of water should be spilled around the food field. The baits should be fed regularly, preferably twice a month, for 3 consecutive days. Diseased fish and dead fish were found to be buried in a timely manner and diagnosed and given medication.