Bean dregs are not suitable for raw food, and need to be cooked, which costs a lot. Because bean dregs contain three anti-nutritional factors: trypsin inhibitor, goiter factor and thrombin, among which trypsin inhibitor can hinder the digestion and absorption of soybean protein by trypsin in chickens, cause diarrhea and affect growth. After fermentation with Nongshengle feed starter, not only cooking is not needed, but also the feeding effect is better.

The operation method of feeding fermented bean dregs to chickens (refer to the method of fermenting bean dregs with Nongshengle feed starter);

(1) Ingredients: crushed rice straw or straw powder 5-20%, bean dregs 65-75%, feed starter 3‰, and the rest can be corn flour or rice bran, in which the ratio of corn flour or rice bran to bean dregs can be appropriately adjusted according to the actual situation such as the water content of bean dregs.

(2) Mixing: fully mix the fermented materials, then add water and stir evenly, and the water content of the materials is generally controlled between 50% and 60%. The judgment method is: hold the mixed material tightly so that the watermark can be seen without dripping from the fingers, and it can be scattered when it is released and landed. If the juice can be squeezed out and does not spread on the ground, it means that the water content is greater than 75%, and it is unfavorable to be too dry and wet, so it should be adjusted.

(3) sealed fermentation: immediately after mixing, put it into containers such as pots, jars, ponds, plastic bags, etc., and cover it with plastic film. In summer, sealed fermentation at 30℃ or above for about 5 days, 25℃ for 7 days and 20℃ 10 days. The lower the temperature, the longer the fermentation time, and the fermentation time can be adjusted according to the local actual situation. It can be eaten when the raw materials are sweet and have a taste of wine.

Study on bean dregs fermented by nongshengle starter;

(1) is convenient for long-term storage. Non-fermented bean dregs can be stored for up to 3 days, and fermented bean dregs with feed starter can be stored for more than 1 month. If it can be sealed, compacted or dried, it can be preserved for more than half a year or even one year.

(2) Rich nutrition. After drying, the digestibility of dry matter increased by 13. 17%, metabolic energy increased by 16%, digestible protein increased by more than 20%, and crude fiber decreased by about 30%.

(3) Save feed cost and improve economic benefits. The bean dregs fermented by Nongshengle feed starter can replace a large part of feed in the future, saving feed cost, making chickens less sick and early to slaughter.

(4) The anti-nutritional factors are greatly degraded, and the disease resistance is improved. Soybean dregs fermented by feed starter can significantly improve its digestion and absorption rate and degrade anti-nutritional factors. This substance contains a large number of beneficial bacteria and improves the disease resistance of animals.

(5) Improving the palatability of feed. After feeding the starter, the crude fiber is reduced by more than one third, and animals like to eat more, which promotes appetite and increases the secretion of digestive juice.