How to cultivate fish fry with soybean milk

The nutrient content of soybean milk is very large, which is very rich in protein, which can fully meet the nutritional needs of fish fry. And even if the soybean milk is not finished, it will not have a great impact on the water quality. It can also cultivate plankton and reduce the incidence of fish fry. Therefore, the effect of cultivating seedlings with soybean milk is very good. So how to cultivate it? The following editor will give you a brief introduction, let's have a look!

1. Making soy milk

Soybean milk is made from soybeans. Soybeans are first soaked in warm water of about 30 degrees for about 6-7 hours before grinding soybeans. The soaking time should be adjusted reasonably according to the change of water temperature. If the water temperature is low, then soak for a long time, otherwise, do not soak too long. During grinding, a special soymilk machine is used to put soybeans in the right proportion of water. Generally, 1kg soybeans are put into the water around 15kg. In addition to soybeans, we can also use bean cakes to grind the milk and soak it in water. However, it should be noted that water can not be added after grinding to prevent precipitation.

2. The method of pouring slurry

When we sprinkle soybean milk, in order to improve the utilization conversion rate of soybean milk and ensure that soybean milk particles exist on the water surface for a long time. Therefore, you should be fed at least twice a day, preferably three times a day. Each sprinkling should be comprehensive and uniform, and then we should make reasonable adjustments according to the species of farmed fish. For example, grass carp, herring and other fish species concentrate on the shallow water period by the pool every day, so when we sprinkle soybean milk, we should splash more on the edge of the pool.

3. Slurring time

The time of sprinkling soybean milk is generally around 9: 00 in the morning and 5: 00 in the evening. Try to avoid the high temperature at noon to prevent the soybean milk from deteriorating. But the time of sprinkling sooner or later is also fastidious, not too early, then the water temperature is not enough, the amount of dissolved oxygen in the water is less, and the food intake of fish fry is not much, which can easily lead to anoxic death of fish fry. If it is fed too late, it may not be finished, and there is also a risk of anoxia of fish fry. Then we should reasonably adjust the sprinkling amount according to the situation of fish fry and water color, generally about 4kg per mu in seedling stage, and increase about two kilograms in 5-7 days week.

4. Points for attention

The storage and fresh-keeping ability of soybean milk is very poor, and soybean milk had better be used fresh. So we should throw it and feed it in time after grinding the soybean milk. Because if the soybean milk is stored for too long, the soybean milk will be delaminated with water, which will lead to the deterioration of soybean milk and the decline of the effect. And before splashing and feeding, we should also pay attention to filter out the bean dregs, after the bean dregs sink to the bottom, it will have a great impact on the water quality. Finally, when feeding soybean milk, there is more concentrate, so we have to feed it in combination with fertilization. It can not only save fine feeding, but also promote the reproduction of plankton and cultivate natural bait.

The above is a brief introduction to how to cultivate fish fry with soybean milk. Although the method of cultivating fish fry with soybean milk will increase some culture costs, the effect is very good, and the benefit will be increased as a result. That's all for today's introduction. This article is for reference only. I hope it can help you all.