Sibbald et al., 1977. Poult. Sci., 56 (6): 2079-2086 Document reference Sibbald, I. R. ; Kramer, J. K. G, 1977. The true metabolizable energy values of fats and fat mixtures. Poult. Sci., 56 (6): 2079-2086Web https://doi.org/10.3382/ps.0562079Citation key Sibbald et al., 1977Datasheets Fats