Aubel, N.A.; Olson, KC; Jaeger, J.R.; Eckerle, G.J.; Pacheco, L.A.; Macek, M.J.; Mundell, L.R.; Murray, L.W.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2012)
Diet selection is a dynamic process because of seasonal changes in animal and plant
characteristics. Nutrient requirements of grazing animals are a function of physiological
state; moreover, plant characteristics may be ...