Jones et al., 1988. J. Anim. Sci., 66: 194-203 Document reference Jones, A. L. ; Goetsch, A. L. ; Stokes, S. R. ; Colberg, M., 1988. Intake and digestion in cattle fed warm- or cool-season grass hay with or without supplemental grain. J. Anim. Sci., 66 (1): 194-203Web http://www.journalofanimalscience.org/content/66/1/194Citation key Jones et al., 1988