How to reuse soybean dregs refers to the byproducts generated from soy-based products such as tofu, soy milk, and other processed soy foods. In many areas, these residues are often discarded as waste, creating environmental challenges and placing a heavy burden on sanitation systems. However, soybean dregs are actually rich in nutrients, with a crude protein content of approximately 28% and crude fiber around 6%. Dry soybean dregs contain about 27.7% crude protein, which is three times higher than that of rice. This makes them a valuable feed source for pigs, chickens, and ducks. However, they should not be fed directly but rather fermented using a microbial agent like Goldbeet to enhance their nutritional value and digestibility.
After fermentation, soybean dregs can be used as feed for piglets or adult pigs. For pigs weighing over 15 kg, the feeding rate can gradually increase up to 20%, and for pigs over 60 kg, it can reach as high as 70%. It's important to add trace elements alongside the fermented dregs to ensure balanced nutrition and maintain the growth rate of the animals. Fermented soybean dregs are especially suitable for fattening pigs and lactating sows, as they have good palatability and are generally well accepted within one or two days.
However, it's advisable to limit the use of fermented soybean dregs in late pregnancy, as excessive fat accumulation in sows may negatively affect litter size. By properly reusing soybean dregs, farmers can reduce waste, lower feed costs, and improve sustainability in animal farming.
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