Journal or Book Title
National Hog Farmer
The main goal of grinding ingredients (either with a hammer mill or a roller mill) is to maximize the value of the feed delivered to pigs. By reducing particle size, corn passing through the digestive tract of the pig will be more effectively exposed to digestive enzymes, and improves the quantity of nutrients that pigs can extract from the grain.
Acosta, Jesus; Patience, John; Jones, Cassandra; and Stark, Charles, "Roller versus hammer: Corn particle size impacts digestibility" (2017). Animal Science Publications. 768.