Maintenance energy requirements of grazing sheep: A detailed comparison between models

Agricultural Research Council (ARC), 1980, The nutrient requirements of ruminant livestock, 351 Arnold, 1977, Mathematical relationships and computer routines for a model of food intake, liveweight change and wool production in grazing sheep, Agric. Systems, 2, 209, 10.1016/0308-521X(77)90006-3 Christian, 1981, Simulation of grazing systems, 361 Christian, 1978, Simulation of grazing systems, 115 Doney, 1968, Differences amongst breeds of sheep in food requirements for maintenance and live-weight change, J. Agric. Sci. Camb., 71, 343, 10.1017/S0021859600014854 Dryden, 1981, The simulation of growth rate in grazing sheep—comparison of the NRC and ARC feeding standards, Agric. Systems, 7, 189, 10.1016/0308-521X(81)90046-9 Edelsten, 1975, A simulation model of intensive lamb production from grass Edelsten, 1977, A simulation model of a lowland sheep system, Agric. Systems, 2, 17, 10.1016/0308-521X(77)90014-2 France, 1983, A model for evaluating lamb production systems, Agric. Systems, 10, 213, 10.1016/0308-521X(83)90046-X Geisler, 1979, A model for calculation of the energy requirements of the pregnant ewe, Anim. Prod., 29, 339, 10.1017/S0003356100023606 Geisler, 1979, A model for the effects of energy nutrition on the pregnant ewe, Anim. Prod., 29, 357, 10.1017/S0003356100023618 Graham, 1982, Maintenance and growth, 81 Graham, 1974, Basal metabolic rate in lambs and young sheep, Aust. J. Agric. Res., 25, 957, 10.1071/AR9740957 Graham, 1976, Simulation of growth and production in sheep-model 1: A computer program to estimate energy and nitrogen utilization, body composition and empty liveweight change, day by day for sheep of any age, Agric. Systems, 1, 113, 10.1016/0308-521X(76)90010-X INRA, 1978, Alimentation des Ruminants, 621 Janeau, 1983, Utilisation de la biotélémétrie dans l'étude du comportement alimentaire: application aux ovins vivants en plein air, Acta Applicata, 7, 313 Rattray, 1974, Efficiency of utilization of metabolizable energy during pregnancy and the energy requirements for pregnancy in sheep, J. Anim. Sci., 38, 383, 10.2527/jas1974.382383x Sibbald, 1979, A conceptual approach to the modelling of herbage intake by hill sheep, Agric. Systems, 4, 119, 10.1016/0308-521X(79)90024-6 Taylor, 1969, Models of maintenance requirements in livestock Van Dyne, 1975, Agricultural systems models and modelling: An overview, 23 Vera, 1977, A quantitative model of energy intake and partition in grazing sheep in various physiological states, Anim. Prod., 25, 133, 10.1017/S0003356100039374 Webster, 1979, Energy metabolism, 166 White, 1983, A simulation model of a breeding ewe flock, Agric. Systems, 10, 149, 10.1016/0308-521X(83)90067-7