The ingredient composition of the experimental diet is shown in Table 1. Analyzed nutrient composition from the experimental diet is shown in Table 2. The physical characteristics of the TMR based on the Penn State Particle Separator (Kononoff et al., 2003) was (mean ± SD) 3.3 ± 1.1% on upper sieves (19-mm pore size), 38.9 ± 4.0% on middle sieves (8-mm pore size), 13.5 ± 1.8% on lower sieves (4-mm pore size), and 44.4 ± 5.0% in the pan. Fecal starch level for all periods (n = 4) was (mean ± SD) 3.2 ± 0.5% DM.