Figure 1.

Calculated IVDMD for the treatments soybean meal (SBM), canola meal (CAN), and sunflower meal (SUN). Dry matter degradation rates were not different (*P* > 0.05) across treatments. Degradation rates were calculated using the exponential equation of Ørskov and McDonald (1979): *Y = a + b(1– e*^{–ct}*)*, where *Y* = DM disappearance in time (*t*); *a* = DM disappearance at time 0; *b* = the proportion of DM disappearance during time, and *c* = the rate of DM disappearance of the degradable fraction.