The water depth of the early spring fish pond in the water transfer temperature should be controlled at 0.6 to 0.8 meters, so that the water temperature can be raised quickly and the fish can be eaten earlier. After the beginning of spring, it is necessary to dilute the water. For those ponds with poor water holding capacity, do not add too much water at one time when adding new water, so that the temperature of the water can drop suddenly. In case of continuous rainy weather, the water depth should be increased appropriately to prevent excessive changes in the fish pond water temperature. Adjusting water quality If the water quality of the fish pond is found to be aging or the water quality is acidic, 0.2 meters of new water can be poured into the pond. After 20 to 30 kg of calcined water per acre of water, the whole pool is splashed. When the water body is lean, appropriate organic fertilizer should be applied to keep the water body moderately rich. The transparency of the water body should be kept at a depth of 0.3 to 0.4 meters. After the beginning of the early spring food, it is necessary to carry out gestation and domestication. After 5 to 7 days, a small amount of crushed fines will be used to attract food. Then, the range of taming should be gradually reduced until the range of tame food is transferred to the food market. Can improve feed utilization. If there are multiple small areas of turbidity appearing from the bottom of the pool to the surface of the water, the fish in the fish pond is in a state of starvation and the feed should be promptly fed. When the surface temperature of the water rises to 10°C, the fish begin to feed in small amounts. At this time, feeding once a day or every other day, each feeding amount may account for 1/6 of the feeding amount in summer and autumn. Early prevention and strengthening of early management is one of the effective ways to enhance fish disease resistance. In addition, when the fish pond is filled with water in early spring, fresh well water should be injected as much as possible, because this kind of water brings 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.
Dehydrated Spinach,Air Dried Spinach Flakes,Dehydrated Spinach Flakes,Dehydrated Spinach Leaf
Xinghua Dongbao International Trade Co.,Ltd , https://www.xhdongbaofoods.com