Summary
Abstract Soybean meal (SBM) is a high-quality protein source in ruminant diets due to its high crude protein (CP) and well-balanced amino acid content. However, the yield and nutritional composition of seeds can vary depending on edaphic, biological, anthropogenic, topographic, and meteorological factors. These variations may impact the value of SBM as a feed ingredient, influencing dietary composition, animal performance, and profitability. This study evaluated how within-field soybean yield variability affects the nutrient composition of seeds and dietary inclusion rates of SBM in a model beef cattle diet. The research was conducted in a non-irrigated soybean field of Southern Illinois University (SIU), located in Elkville, IL. Soybean seed samples (n=27) were collected fr
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