The main nutritional component of soybean and soybean meal is crude protein. The crude protein of soybean is 38%, while that of soybean meal is 48%, so 1 kg soybean is equivalent to 0.79 kg soybean meal. The specific calculation method is to divide the crude protein of soybean by the crude protein contained in soybean meal, that is, 0.38/0.48=0.79.

Replacing soybean meal with soybean is not a simple equivalent substitution, and it needs to be reasonably matched according to the nutritional indexes of different raw materials in concentrate to achieve the ideal effect.