A model of energy and nitrogen utilisation by cattle

Agricultural Systems - Tập 7 - Trang 235-237 - 1981
M.McC. Graham1
1CSIRO, Division of Animal Production, PO Box 239, Blacktown, New South Wales 2148, Australia

Tài liệu tham khảo

Black, 1980, Application of biological principles to field problems, 13, 160 Ferrell, 1976, Growth, development and composition of the udder and gravid uterus of beef heifers during pregnancy, J. Anim. Sci., 42, 1477, 10.2527/jas1976.4261477x Graham, 1976, Computer simulation of energy and nitrogen utilization in sheep, 447 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. Sys., 1, 113, 10.1016/0308-521X(76)90010-X Graham, 1974, Basal metabolic rate in lambs and young sheep, Aust. J. Agric. Res., 25, 957, 10.1071/AR9740957 Jakobsen, 1956, Protein requirements for foetus formation in cattle, 6, 115 Maff, 1976, Energy allowances and feeding systems for ruminants Reid, 1972, Body composition of animals: Interspecific, sex, and age peculiarities and the influence of nutrition, 213