The objective of this study was to compare the diet selection and productive performance of beef cattle (Asturiana de los Valles breed) and crossbred horses grazing on heather-gorse shrublands with different available surface of improved pasture (IP): 80% (IP80) or 25% (IP25). Twelve and 10 lactating dams per species with their offspring were managed in IP80 (19 ha) and IP25 (22 ha). ... https://www.sukrensi.com/