In an experiment at Erap, Morobe Province crossbred and pedigree Brahman heifers supplemented with copper, cobalt and/or common salt showed no response to copper or cobalt supplementation.
En un experimento en Erap, Provincia de Morobe, novillos Brahman puros y cruzados suplementados con cobre, cobalto y/o sal comun, no mostraron respuesta al cobre o al cobalto.springer springer