Soybean meal is the product of chemical extraction of soybean oil and fat after the product, oil and fat residue to teach the low soybean cake, oil factory products are generally puffing treatment, the first level of soybean meal protein content in 46%, 43% of the second level.
Soybean cake is a mechanical method of pressing soybeans to extract soybean oil and grease after the product, the residual amount of oil and grease to teach high soybean meal, relatively high energy. With the different pressing process, the protein content is not stable, the highest protein content of 43%, and the degree of maturation is not completely thorough, need to be cooked according to the situation.