Graf et al., 1953. J. Dairy Sci., 36 (6): 580-581 Document reference Graf, G. C. ; Engel, R. W., 1953. The value of corn cobs as a partial replacement for hay in the ration of lactating cows. J. Dairy Sci., 36 (6): 580-581Web https://doi.org/10.3168/jds.S0022-0302(53)91535-5Citation key Graf et al., 1953Datasheets Maize cobs