Soybean milk can play a role in fattening fish fry.

Soybean milk is rich in nutrition and high in protein, which can meet the nutritional needs of fish fry. In addition, the soybean milk leftover from fish fry falls into the water, the water quality is easy to fertilize, and the fertility is stable, the number of plankton increases, and the fish disease and enemy damage are less.

Feed the fish with soybean milk

First, the production of soybean milk. Soak the soybeans in 25-35 ℃ of warm water for 8 hours before grinding. When grinding, soybeans and water are added at the same time, generally 5-10 jin of water per jin of soybeans. Soaked bean cake can also be used to grind milk. The soaking time of bean cake is 5ml / kg for 6 hours. When grinding, 5 / kg / jin of water is used for 6 jin.

Second, the method of pouring slurry. In order to prolong the suspension time of soybean milk particles in water and improve the utilization rate of soybean milk, the soybean milk was fed 3-5 times a day and sprinkled in the whole pool. It is best to pile up some tender grass in the four corners of the fry pond, and then pour soy milk around the grass, so that the young fry that like density can be eaten with open mouths. Grass and herring like to concentrate on the shallow water on the edge of the pool, so the edge of the grass and herring pond should be spilled more.

Third, the time of pouring slurry. It is usually from 8 a.m. to 5 p.m. Too early the water temperature is low, the oxygen content is low, and the fish fry eat less. Especially in the fish floating head, splashing pulp will aggravate the hypoxia. If you feed it too late, you can't finish it before dark, and the decomposition of soybean milk in water can easily cause anoxia in the fish pond. If the weather is muggy, when there is a thunderstorm or rainstorm, you must feed less or stop feeding.

Fourth, the amount of slurry. At the seedling stage, an average of 3-4 kg of soybean milk was fed per mu per day; after a week, it increased to 5-6 kg, and was flexibly controlled according to the water condition. The water color should be alive, fat, tender and cool. Generally, 10,000 fish species are raised, requiring 7-8 kg of soybeans. In addition, raising grass carp and herring fry, when the body length of the fry reaches 10cm 10 days after entering the pond, because the food intake is larger than that of other fry, in addition to splashing soybean milk, it is best to pile thicker bean paste and bean cakes in the shallow water around the pond for them to eat.