Soybean meal (SBM) is one of the most commonly used feed ingredients for swine and poultry nutrition. However, variation in SBM composition (both digestible amino acids and energy) impacts the final diet’s nutritional value, associated animal performance, and diet cost. This variability arises from different processing plants, times, or regions, and requires ongoing evaluation of SBM. In addition, there has been an increased focus on environmental impact, and on understanding how diet composition influences sustainability metrics such as greenhouse gas (GHG) emissions. It is assumed that improving the environmental impact of formulated animal diets will come at a cost, but the dynamics have not been fully explored.

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