same commercial feed mill in Northwest Iowa. Diets were pelleted using a 500-hp pellet mill (Pioneer Pellet Mill, Bliss Industries, Ponca City, Okla.) with a 4.4- × 38.1-mm die, counter-flow cooler (OPFLO, Bliss Industries, Ponca City, Okla.), and a twin screw liquid fat coater (TMX Mistcoater, APEC, Lake Odessa, Mich.). All samples were collected
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