Pond early spring management technical points

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To do a good job in early spring management of ponds can effectively grasp the initiative of fishery production throughout the year so as to achieve the goal of reducing the cost of fish farming and improving the economic benefits of fish farming.

First, increase the water temperature. The depth of fish ponds in early spring should be controlled at 0.6-0.8 meters, which will increase the temperature of water quickly, and encourage fish to eat earlier. After the beginning of spring, it is necessary to dilute the water. For fishing ponds with poor water retention, do not add too much water at a time when adding new water, so that the temperature of the water can be reduced suddenly. In case of continuous rainy weather, increase the water depth appropriately to prevent excessive changes in the fish pond water temperature.

Second, adjust the water quality. If the water quality is found to be aging or when the water quality is acidic, 0.2m deep new water can be injected into the pond. After each kilogram of water, 15kg-30kg of calcined water is used to splash the whole water. When the water body is lean, appropriate organic fertilizer should be applied to maintain moderate body fat. Water body clarity should be maintained at 0.3-0.4 meters.

Third, eat as soon as possible. After the spring, when the temperature of the surface water rises to about 10°C, the fish will start to feed in small amounts. At this time, the fish should be fed and domesticated, and they should be fed once a day or every other day. The amount of each feeding is summer and autumn. 1/6. If multiple small areas of turbidity occur from the bottom of the pool to the surface of the water, it means that the fish in the fishing pond is in a state of starvation, and feeds should be increased in time.

Fourth, early prevention of illness. Strengthening early spring aquaculture management is one of the effective ways to enhance fish disease resistance. After the winter winter, fish consume a lot of energy, physical weakness, and increased disease. The common fish disease in spring fish ponds is mainly watery mildew, which can be controlled by spraying salt and baking soda mixture water to the whole pool; parasite diseases such as trichoderma disease and caterpillar fungus also occur frequently. Copper sulfate and sulfuric acid can be used. After the iron (5:2) mixture water was poured, the whole pool was splashed to control.

In addition, fresh water should be injected into the fish pond as early as possible in the early spring, because this kind of water has less pathogenic bacteria, which will help reduce the occurrence of fish diseases.

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