Early spring management of fishponds
To do a good job in early spring management of fish ponds can effectively grasp the initiative of fishery production throughout the year so as to reduce the cost of fish farming and increase the economic benefits of fish farming.
1. Increase the water temperature. The depth of the fish pond in the early spring should be controlled at 0.6 to 0.8 meters, so that the water temperature can be increased quickly, and fish can be eaten 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, the water depth should be increased appropriately to prevent excessive changes in the fish pond water temperature.
2. Adjust water quality. If the water quality is found to be aging or when the water quality is acidic, 0.2 meters deep new water can be injected into the pond. After each mus of water, 20kg to 30kg of calcined water is used to splash the whole water. When the water body is lean, some organic fertilizer should be properly applied to maintain moderate body fat, and the water body's transparency should be maintained at 0.3 to 0.4 meters.
3. Eat as early as possible. After the beginning of spring, priming and domesticating should be carried out. First, a small amount of crushed fines should be sprinkled around the food field for lure after 5 to 7 days. After that, the range of taming should be gradually reduced until the range of domesticated food is transferred to the food market. Can improve feed utilization. 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 feed should be fed in time. When the surface temperature of the water rises to about 10°C, the fish begin to feed in small amounts. At this time, the feeding is performed once a day or every other day. The amount of each feeding is 1/6 of the feeding amount in summer and autumn.
4. Early prevention of illness. If the fish is starved for a long time, it will lead to its growth stagnation and increased disease. Therefore, strengthening early-stage aquaculture management is one of the effective ways to increase fish disease resistance. 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.
The common fish disease in adult fish ponds in spring is mainly watery mildew, which can be controlled by splashing with salt and baking soda mixture to prevent the occurrence of parasitic diseases such as trichoderma and caterpillar fungus. Copper sulfate and sulfuric acid can be used. After the ferrous (5:2) mixture water was poured, the whole pool was splashed to control.
1. Increase the water temperature. The depth of the fish pond in the early spring should be controlled at 0.6 to 0.8 meters, so that the water temperature can be increased quickly, and fish can be eaten 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, the water depth should be increased appropriately to prevent excessive changes in the fish pond water temperature.
2. Adjust water quality. If the water quality is found to be aging or when the water quality is acidic, 0.2 meters deep new water can be injected into the pond. After each mus of water, 20kg to 30kg of calcined water is used to splash the whole water. When the water body is lean, some organic fertilizer should be properly applied to maintain moderate body fat, and the water body's transparency should be maintained at 0.3 to 0.4 meters.
3. Eat as early as possible. After the beginning of spring, priming and domesticating should be carried out. First, a small amount of crushed fines should be sprinkled around the food field for lure after 5 to 7 days. After that, the range of taming should be gradually reduced until the range of domesticated food is transferred to the food market. Can improve feed utilization. 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 feed should be fed in time. When the surface temperature of the water rises to about 10°C, the fish begin to feed in small amounts. At this time, the feeding is performed once a day or every other day. The amount of each feeding is 1/6 of the feeding amount in summer and autumn.
4. Early prevention of illness. If the fish is starved for a long time, it will lead to its growth stagnation and increased disease. Therefore, strengthening early-stage aquaculture management is one of the effective ways to increase fish disease resistance. 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.
The common fish disease in adult fish ponds in spring is mainly watery mildew, which can be controlled by splashing with salt and baking soda mixture to prevent the occurrence of parasitic diseases such as trichoderma and caterpillar fungus. Copper sulfate and sulfuric acid can be used. After the ferrous (5:2) mixture water was poured, the whole pool was splashed to control.
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