The digestibilities of nutrients are shown in Table 3. Significant effects of species and treatments, and an interaction between species and treatments were found in DM digestibility. DM digestibility in sheep was the lowest in treatment 1 and followed by that of treatment 2. There was no difference in DM digestibility between treatments 3 and 4 in sheep. While there was no difference in DM digestibility among treatments 2, 3 and 4 in cattle, that in treatment 1 was lower than the others. Consequently, there was a difference in DM digestibility between sheep and cattle in treatment 2. A similar trend was found in OM, CF and NDF digestibilities. On the other hand, CP digestibility was not different between the species in treatments 1 and 2.