... metabolism and gluco-neogenesis in normal and hypoglycemic sheep. American Journal of Physiology215, 87 4 88 0.Bergman, E.N., Katz, M.L. and Kaufman, C.F. (1970) Quantitative aspects of hepatic and ... Research31, 180 1– 180 5.Pell, J.M. and Bergman, E.N. (1 983 ) Cerebral metabolism of amino acids and glucose infed and fasted sheep. American Journal of Physiology 244, E 282 –E 289 .Pethick, D.W. and Lindsay, ... 2005. Quantitative Aspects of Ruminant Digestion and Metabolism, 2nd edition (eds J. Dijkstra, J.M. Forbes and J. France)291In fasted, pregnant and lactating sheep about 26%, 30% and 16%, re-spectively,...