Egan, 1974. Aust. J. Agric. Res., 25: 613-630 Document reference Egan, A. R, 1974. Protein-energy relationships in the digestion products of sheep fed on herbage diets differing in digestibility and nitrogen concentration. Aust. J. Agric. Res., 25: 613-630Web https://doi.org/10.1071/AR9740613Citation key Egan, 1974