Bowman et al., 1991. J. Anim. Sci., 69: 369-378 Document reference Bowman, J. G. P. ; Hunt, C. W. ; Kerley, M. S. ; Paterson, J. A., 1991. Effects of grass maturity and legume substitution on large particle size reduction and small particle flow from the rumen of cattle. J. Anim. Sci., 69 (1): 369-378Web http://www.journalofanimalscience.org/content/69/1/369Citation key Bowman et al., 1991