Fish pond autumn management technology

Timely cultivation of fish ponds in clear ponds will generally result in aging water, reduced natural foods, and increased levels of harmful substances such as hydrogen sulfide and pathogens. After the fall, the fish should be transferred to ponds cleared by clear ponds for cultivation. Where water and fish ponds are difficult to turn around, all the fish species can be transferred out of stocking, and then 75 to 100 kg of quick lime per acre can be used to disinfect the original pond, and water fertilization can be performed according to conventional methods until fish disappears. The species turned back to ensure the purification of the living environment.

Breeding for school feeding The autumn fish species have a large food intake and grow rapidly, and must ensure the supply of feed. 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 duckweed, tender grass or aquatic grasses of 70-90 kg and concentrate feed 1.5-2.5 kg. 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. The polyculture of cockroaches and squid needs to be fertilized regularly, fertilize once every 10 to 15 days, apply 70-90 kg of fermented manure per acre, and keep the water transparency at 30-35 cm. The fish ponds with Scales and squid species as the dominant species and grass carp should be dominated by fertilization, supplemented by feeding. In addition to the use of basal fertilization, top dressing is applied once every 5 to 10 days, and the amount of manure and feces per acre is 80 to 100 kg. At the same time, two to four kilograms of intensive feed per 10,000 fish are consumed daily. For grass carp, 60 to 90 kg of fodder will be fed per 10,000 grass carp before speculation.

The division management of fish species should be divided into different groups according to different specifications, so that the specifications of the fish species in the same pool should be 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. Fishes over 16 cm in size can be placed in adult fish ponds. Smaller fish species need special pools for cultivation, so as not to cause food shortages, and stronger and weaker weaker extremes occur.

During the cultivation of fish species, it is imperative to insist on daily patrols and pay attention to the change of water quality for fresh water. And often clean the food market, timely removal of residue leftover bait, every half a month in the food market with bleaching powder spilled 0.5 kilograms of water, regular feeding baits, preferably twice a month, each feeding 3 consecutive days. Should be based on the size of the water, water depth and other conditions, a reasonable dilute, and promote the growth of fingerlings.

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