American Society of Agricultural Engineers (1967). Method of determining modulus of uniformity and modulus of fineness of ground feed. Agricultural Engineers Yearbook, p. 301.
Baldwin, R. I., Koong, L. J., Ulyatt, M. J. & Smith, N. (1976). Toward a synthesis. In From Plant to Animal Protein, Reviews in Rural Science Vol. II (ed. Sutherland, T. M., McWilliam, J. R. and Leng, R. A.), pp. 175–181. Armidale, Australia: University of New England Publishing Unit.
Florentin, P. (1952). A study on the situation and the passages of interior communication of the gastric reservoirs in the domestic ruminants. Revue de Médecine Vétérinaire 103, 530–542.
Greenhalgh, J. F. D. & Reid, G. W. (1973). The effects of pelleting various diets on intake and digestibility in sheep and cattle. Animal Production 16, 223–233.
Grenet, E. (1966). Plant particles in the faeces of sheep. Annales de Zootechnie 15, 303–312.
Grenet, E. (1970). Size and structure of plant particles in the omasum and faeces of cattle. Annales de Biologie Animale, Biochimie et Biophysique 10, 643–657.
Hendricksen, R. E., Poppi, D. P. & Minson, D. J. (1981). The voluntary intake, digestibility and retention time by cattle and sheep of stem and leaf fractions of a tropical legume (Lablab purpureus). Australian Journal of Agricultural Research 32, 389–398.
Lee, J. A. & Pearce, G. R. (1984). The effectiveness of chewing during eating on particle size reduction of roughage by cattle. Australian Journal of Agricultural Research 35, 609–618.
Mebtens, D. R. & Ely, L. O. (1979). A dynamic model of fiber digestion and passage in the ruminant for evaluating forage quality. Journal of Animal Science 49, 1085–1095.
Poppi, D. P., Minson, D. J. & Ternouth, J. H. (1981 a). Studies of cattle and sheep eating leaf and stem fractions of grasses. III. The retention time in the rumen of large feed particles. Australian Journal of Agricultural Research 32, 123–137.
Poppi, D. P., Minson, D. J. & Ternouth, J. H. (1981 b). Studies of cattle and sheep eating leaf and stem fractions of grasses. I. The voluntary intake, digestibility and retention time in the reticulo-rumen. Australian Journal of Agricultural Research 32, 99–108.
Poppi, D. P., Norton, B. W., Minson, D. J. & Hendricksen, R. E. (1980). The validity of the critical size theory for particles leaving the rumen. Journal of Agricultural Science, Cambridge 94, 275–280.
Reid, C. S. W., Ulyatt, M. J. & Monro, J. A. (1977). The physical breakdown of feed during digestion in the rumen. Proceedings of the New Zealand Society of Animal Production 37, 173–175.
Thomas, S. & Campling, R. C. (1977). Comparisons of some factors affecting digestibility in sheep and cows. Journal of the British Grassland Society 32, 33–41.
Uden, P. & Van Soest, P. J. (1982). The determination of digesta particle size in some herbivores. Animal Feed Science and Technology 7, 35–44.
Ulyatt, M. J. (1983). Plant fibre and regulation of digestion in the ruminant. In Fibre in Human and Animal Nutrition. Bulletin 20 (ed. Wallace, G. and Bell, L.), pp. 103–107. Wellington, New Zealand: The Royal Society of New Zealand.
Van Soest, P. J. (1966). Forage intake in relation to chemical composition and digestibility: some new concepts. Proceedings of the 23rd Southern Pasture Forage Crop Improvement Conference, pp. 24–36.