Beef cow-calf production experiments on the savannas of eastern Colombia: effects of minerals, early weaning, crossbreeding, urea feeding, and pastures on herd production

Stonaker, Howard H.; Raun, Ned S.; Gómez Soler, Juvenal. 1984. Beef cow-calf production experiments on the savannas of eastern Colombia : Effects of minerals, early weaning, crossbreeding, urea feeding, and pastures on herd production. Centro Internacional de Agricultura Tropical (CIAT); Instituto Colombiano Agropecuario (ICA); Winrock International, Cali, CO. 125 p.