Agricultural Research Council (1980). The Nutrient Requirements of Farm Livestock. Slough: Commonwealth Agricultural Bureaux.
Atkinson, T., Fowler, V. R., Garton, G. A. & Lough, A. K. (1972). A rapid method for accurate determination of lipid in animal tissue. Analyst 97, 562–568.
Balch, C. C. (1967). Problems in predicting the role of non-protein nitrogen as a substitute for protein in rations for farm ruminants. World Review of Animal Production 3, 84–91.
Bergman, E. N. (1973). Glucose metabolism in ruminants as related to hypoglycemia and ketosis. Cornell Veterinarian 63, 341–382.
Black, J. L. & Griffiths, D. A. (1975). The effect of live weight and energy intake on nitrogen balance and total nitrogen requirements of lambs. British Journal of Nutrition 33, 339–413
Brockway, J. M. (1987). Influence of Activity. Rowett Research Institute Report. Aberdeen: Rowett Research Institute.
Campbell, R. G. (1988). Nutritional constraints to lean tissue accretion in farm animals. Nutrition Research Reviews 1, 233–253.
Chowdhury, S. A. (1989). Energy and protein metabolism during undernutrition. MSc Thesis, University of Aberdeen.
Chowdhury, S. A. (1992). Protein utilization during energy undernutrition in sheep. PhD Thesis, University of Aberdeen.
Chowdhury, S. A., Ørskov, E. R. & MacLeod, N. A. (1990). Protein utilization during energy undernutrition in steers. Proceedings of the Nutrition Society 49, 208A.
Davidson, J., Matheison, J. & Boyne, A. W. (1970). The use of automation in determining nitrogen in Kjeldahl method with final calculation by computer. Analyst 95, 181–193.
Fuller, M. F. & Croft, M. (1977). The protein sparing effect of carbohydrate. Nitrogen retention of the growing pig in relation to diet. British Journal of Nutrition 39, 479–488.
Garlick, P. J., Clugston, G. A. & Waterlow, J. C. (1980). Influence of low energy diets on whole body protein turnover in obese subjects. American Journal of Physiology 238, E235–E244.
Hovell, F. D. DeB., ørskov, E. R., Kyle, D. & MacLeod, N. A. (1983). Basal urinary nitrogen excretion and growth response to supplemental protein by lambs close to energy equilibrium. British Journal of Nutrition 50. 173–187.
Krebs, H. A. (1964). The metabolic fate of amino acids. In Mammalian Protein Metabolism, pp. 125–176 [Munro, H. N. and Allison, J. N., editors]. New York: Academic Press.
Ku Vera, J. C. (1988). Energy and N metabolism in cattle nourished by intragastric infusion of nutrients. PhD Thesis, University of Aberdeen.
Leat, W. M. F. (1983). Adipose tissue and structural lipid. In Dynamic Biochemistry of Animul Production. World Animal Science A, pp. 109–136 [Riis, P. M., editor]. Amsterdam, Oxford, New York, Tokyo: Elsevier.
Livesey, G. (1984). The energy equivalents of ATP and the energy values of food proteins and fats. British Journal of Nutrition 51, 15–28.
Lobley, G. E. (1990). Energy metabolism reactions in ruminant muscle: response to age, nutrition and hormonal status. Reproduction Nutrition and Development 30, 13–34.
Lobley, G. E., Connell, A. & Buchan, V. (1987). Effect of food intake on energy and protein metabolism in finishing beef steers. British Journel of Nutrition 57, 457–465.
MacLeod, N. A., Corrigal, W., Striton, R. A. & Ørskov, E. R. (1982). Intragastric infusion of nutrients in cattle. British Journal of Nutrition 47, 547–552.
Madsen, A. (1983). The molecular basis of animal production: metabolism in liver cells. In Dynamic Biochemistry of Animal Production. World Animal Science, A, pp. 53–74 [Riis, P. M., editor]. Amsterdam, Oxford, New York, Tokyo: Elsevier.
Marliss, E. B., Murry, F. T. & Nakhooda, A. F. (1978). The metabolic response to hypocaloric protein diets in obese man. Journal of Clinical Investigation 62. 468–479.
Oldham, J. D. (1984). Protein-energy interrelationship in dairy cows. Journal of Dairy Science 10, 1090–1114.
Ørskov, E. R. (1982). Protein Nutrition in Ruminants. London: Academic Press.
Ørskov, E. R., Grubb, D. A., Wenham, G. & Corrigal, W. (1979). The sustenance of growing and fattening ruminants by intragastric infusion of volatile fatty acids and protein. British Journal of Nutrition 41, 553–558.
Ørskov, E. R. & Hovell, F. D. DeB. (1986). Protein metabolism and utilization during undernutrition in ruminants. In Nuclear and Related Techniques in Animal Production Health, pp. 429–438. Vienna: International Atomic Energy Agency.
Ørskov, E. R., MacLeod, N. A., Fahmy, S. T. M., Istasse, L. A. & Hovell, F. D. DeB (1983). Investigation of nitrogen balance in dairy cows and steers nourished by intragastric infusion. Effect of submaintenance energy input with or without protein. British Journal of Nutrition 50, 99–107.
Sidhu, K. S., Emery, R. S., Parr, A. F. & Merkel, R. A. (1973). Fat mobilization lipase in relation to fatness in lambs. Journal of Animal Science 36, 658–662.
Technicon Instrument Co. Ltd (1967). Technicon Autoanalyser Methodology Urea-N. Sheet no. N-1C. Terrytown: Technicon Instrument Corporation.
Winterer, J., Bistrian, B. R., Bilmazes, C., Blackburn, G. L. & Young, V. R. (1980). Whole body protein turnover study with 15N-glycine and muscle protein breakdown in mildly obese subjects during a protein sparing diet and a brief total fast. Metabolism 29, 575–581.