2.2. Statistical analysis
Experimental data were analyzed using analysis of variance as a 2 × 3 factorial in a completely randomized design using the MIXED procedure of SAS (SAS Inst., Inc., Cary, NC). Pen was the experimental unit for all data analysis. Data analysis included main effects of 2 diet forms and 3 corn particle sizes. Linear and quadratic effects of decreasing particle size were determined as well as interactive effects of corn particle size and diet form. Significant differences were declared at P < 0.05 and trends at P < 0.10.