Soybean residue is a by-product in the process of producing soybean milk or tofu, and the annual output of soybean residue is very large all over the world. China is the birthplace of tofu production, which has a long history. The production and sales of tofu are relatively large, and the corresponding output of bean dregs is also very large. With the development of science and the improvement of human cultural quality, people began to re-understand bean dregs from the perspective of nutrition. Studies have proved that a large part of nutrients in soybean are left in bean dregs. Generally, bean dregs contain 85% water, 3.0% protein, 0.5% fat and 8.0% carbohydrates (cellulose, polysaccharide, etc. In addition, they also contain minerals such as calcium, phosphorus and iron, which are rich in nutritional value and low in price, and can be used as important feed for pigs. However, there are many harmful bacteria, parasites and indigestible components in raw bean dregs, and direct feeding will cause certain harm to pigs, such as diarrhea and bloating. If it can be used reasonably, it can bring considerable economic benefits to users. Full fermentation of bean dregs with Gymboree bean dregs feed starter can not only reduce the feeding cost of pigs, but also detoxify bean dregs and improve the resistance of pigs. The specific operation method is:

1. Prepare materials. Soybean dregs and corn flour each account for about 40%, the remaining 20% can be rice bran and bran, and Gymboree soybean dregs feed starter accounts for about 0.5-1‰;

2. dilute the strain. Firstly, rice bran, corn flour or flour are used as the starter of Gymboree bean dregs feed according to the ratio of1:5 ~10, and then all the raw materials are sprayed and stirred evenly;

3. Humidity requirements. The water content of the prepared material should be controlled at 60-65%. Judgment method: the material can agglomerate by hand, and it is advisable to disperse without dripping water when touching the ground. It is difficult to heat up when there is more water, and it is difficult to ferment when there is less water; When adding water, pay attention to adding less first and then adding until it is qualified;

4. Temperature requirement: the temperature should be above 15-20℃, and low-temperature fermentation will slow down;

5. Sealing requirements. Materials should be completely sealed, but not compacted; When fermenting in a poorly sealed container, cover it with a plastic film or plastic bag, and then tie it tightly with a rubber band;

6. Fermentation is finished. Sealed fermentation at natural temperature for about 3 days, and fermentation is completed when there is wine fragrance;

7. Precautions. During fermentation, it shall not be disassembled or overturned, and the fermented product shall be sealed immediately after each feeding; The finished product can be stored in sealed bags, dried and dehydrated, dried at low temperature, or granulated.

Fermented bean dregs feed can be used not only for raising pigs, but also for raising chickens, ducks, cows and sheep. The effect is remarkable, and the feeding cost can be greatly reduced. Especially in the current competitive market, using bean dregs to ferment and raise animals has become the first choice for many farmers.