Sibbald, 1979. Poult. Sci., 58 (4): 934-939 Document reference Sibbald, I. R., 1979. Bioavailable amino acids and true metabolizable energy of cereal grains. Poult. Sci., 58 (4): 934-939Web https://doi.org/10.3382/ps.0580934Citation key Sibbald, 1979Datasheets Barley grainMaize grainOatsWheat grain