Soymilk is rich in nutrients and has a high protein content, which can meet the nutritional needs of fish and seedlings. Secretary: Rapidly fattening fry. In addition, the soy milk that can't be eaten by the fry falls into the water, the water quality is easy to be fattened and the fertilizer is stable, the quantity of plankton is more, and fish diseases and predators are less.
First, the production of soy milk. Soybeans are soaked in warm water of 25-35~(2) for 5-8 hours before refining. Soybean and water are added at the same time during refining. Generally, 10-20 kg of water per kilogram of soybeans are used. Soaking with soybean cake is also possible. After soaking, the soaking time of the bean cake is 5-6 hours, and the grinding time is 10-12 kilograms per kilogram of water.
Second, the method of pouring pulp. In order to prolong the suspension time of soy milk particles in water and increase the utilization rate of soymilk, feed 3-5 times a day and the entire pool should be spilled. It is best to pile some tender green grass on the four corners of the fry pool, and then spill the milk around the grass so that the young fry can eat as much as they like. Grass and herring like to concentrate on activities in the shallow water near the pool, so the pool of grass and green turtle ponds should splash more milk.
Third, the time of splashing. It is usually from 8 a.m. to 5 p.m. Early water temperature is low, oxygen content is low, and fry are eating less. Especially when the fish floats, the slurry will increase the lack of oxygen floating head. If you feed too late, you can't eat before dark, and the milk in the water can also cause negative oxygen in the pool. If the weather is hot and you want to make a thunderstorm or a rainstorm, be sure to feed less or stop feeding.
Fourth, the number of splashing pulp. During the seedling period, 667 kilograms of soybean milk is fed on an average of 667 square meters per day; it is increased to 5-6 kilograms after one week, and the amount of water is used flexibly according to the water conditions. The color of water should be live, fat, tender and cool. Generally cultivating 10,000 species of fish need 7-8 kilograms of soybeans. In addition, rearing grass carp or blue-fish fry, 10 minutes after the fish ponds up to 10 centimeters, the food intake is larger than other negative seedlings. At this time, in addition to pouring soy milk, it is best to use thicker bean paste, bean cake, etc. Stacked in shallow water around the pond for feeding.
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