CARDI/IDRC Milk production systems (Guyana) project: Phase II - Third Annual Report

acid soils animal health animal performance bovin laitier cardi carga ganadera clay soils dairy cattle echinochloa pyramidalis farming systems feed grasses feed legumes ganado de leche germoplasma germplasm gestion de projet guyana leguminosas forrajeras milk production multiplication des plantes plant propagation project management sanidad animal sol acide sol argileux stocking density suelo arcilloso suplementos supplements taux de charge