Exogenous cellulase enzymes could be used to increase the utilization of improved warm-season grasses. Treatment of T85 with fibrolytic enzymes increased in vitro and in situ DM and NDF digestibility at 24 and 72 h, and the increased degradation rate and release of free ester, ether-linked ferulic acid, and ester-linked p-coumaric acid (Mandebvu et al., 1999; Krueger et al., 2008).