1. Selectivity of resident and oesophageal fistulated steers grazing Arachis pintoi and Brachiaria dictyoneura in the Llanos of Columbia;Carulla;Trop. Grassl.,1991
2. Behavioral factors modifying acceptance of supplementary foods by sheep;Chapple;Res. Dev. Agr.,1986
3. Chruch, D.C., 1976. Digestive Physiology and Nutrition of Ruminants, Vol. 1, 2nd edn. D.C. Church, Corvallis, OR.
4. Cruz-Guerra, R., 1994. Relative palatabilities of Great Basin forages and mechanisms eliciting selective grazing by cattle. MS Thesis, Dept. of Rangeland Resources, Oregon State University, Corvallis, OR, 192 pp.
5. Seasonal preferences of steers for prominent Northern Great Basin grasses;Cruz;J. Range Manage.,1998