12-02 Hess et al Page 1 Tropical Grasslands (2002) Volume 36, 227–238 227 Effect of sward attributes on legume selection by oesophageal-fistulated and non-fistulated steers grazing a tropical grass-legume pasture HD HESS1,2, M. KREUZER1, J. NÖSBERGER3, C. WENK1 AND CE LASCANO2 1 Institute of Animal Sciences, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland 2 Centro Internacional de Agricultura Tropical (CIAT), Cali, Colombia 3 Institute of Plant Sciences, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
