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Fish pond management in spring
1. Inject fresh water and dissolve ice to fill ponds for wintering. Fill the appropriate amount of river water or well water every day after spring to supplement the amount of fish pond water, accelerate the melting of ice, and promote early fish activity. 2. Grasping the source of fish and raising the level of stocking In spring, when fish species are planned to be put into use, it is necessary to increase the amount of pond water and order high-quality fish species. 3. Apply base fertilizer and feed concentrates to raise fish ponds mainly for salmon and squid. Before the fish species are given, apply sufficient man, livestock, and poultry to mix fertilizer, and cultivate large amounts of bait for quail and salmon. Biological; generally put 100-150 kilograms of quality manure per acre surface is appropriate. For larger fish ponds, such as grass carp and squid, fish will be fed with concentrate when they start eating. When the fish’s food intake is increased, the mixed feed is immediately changed. 4. Disinfection of Fish Ponds to Prevent Fish Diseases In the 7-10 days prior to the release of fish species, the water level of the fish ponds should be reduced to 20 cm, and 75 kg of lime should be added to prevent fish diseases.
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