Among dairy nutritionists, grain particle size is of increasing interest, particularly for high-moisture corn. Intuition suggests the smaller the particles, the faster the starch digestion. Dr. Bill Mahanna, Pioneer Global Nutritional Sciences Manager, confirms this. In addition, he calls attention to the importance of particle hardness and distribution in processing for improved feed value. Bill also offers insight on what actually happens to starch in the rumen. This Pioneer Forage Forum segment is part of a series highlighting research on STRD.
Bill Mahanna on grain particle size (5 min MP3)

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