Miron et al. (2002) Cows Corn DCP 9.6 62.1 - 58.8 - 49.3 20.7 65.4 - 61.3 - 53.8 Barrios-Urdaneta Ewes Barley 0 68.2 70.8 - - 64.7 et al. (2003) DCP 26.8 69.3 72.0 - - 67.4 concentrate 54.2 68.9 72.2 - - 68.4 82.3 69.3 72.6 - - 69.3 25