Soybean meal is usually classified for marketing by its crude protein content or by the sum of protein + oil. There are two main categories, the “high-protein” soybean meal with 49-50% of protein + oil and 3% crude fiber, obtained from dehulled seeds, and the “low protein” meal, with 44-46% protein + oil and 6-7% crude fibre, that contain the hulls. In solvent-extracted soybean meals, oil content is typically lower than 2% while it exceeds 3% in mechanically-extracted meals.
