How to Improve the Benefit of Fish Culture in the Winter Season
Due to the low water temperature in winter, the activity of fish digestive enzymes is relatively weak, so the requirements for feed quality are relatively high. Generally, it is better to feed powdered peanut bran, bean cake or compound feed, and the protein requirement content reaches 28% to 30%. The amount of feeding depends on the temperature of the water. When the water temperature is above 8°C, it is fed once every 2 to 3 days. The fed amount accounts for 1% to 2% of the total weight of the fish. When the water temperature rises continuously above 10°C on a continuous sunny day, the fish Increased activity should increase the amount of feeding. The feed can be concentrated in the middle of the fishing pond or in the water depth. The feeding rate is based on the size of the fish pond and the density of the fish. The daily requirement is more than 2%. At the same time, organic fertilizers with a leaven of 200-300 kg per acre should be added, once a day for 10 days, to maintain the best water quality for the winter, provide sufficient food organisms for the wintering of fish, and increase photosynthesis, so as to keep the water higher The amount of dissolved oxygen to promote fish growth and increase production and income.
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