The influence of feed ration composition upon the growth rate of young bulls

aliment pour animaux bulls calves consommation alimentaire (animaux) consumo de piensos costos costs desiccated fodders economic analysis ensilage (produit) ensilaje faeces feces feed consumption feeds forraje seco fourrage grain gain de poids ganancia de peso grain feed granos pienso heces meat yield melasse melaza molasses paille paja piensos ration rations rendement en viande silage straw taureau toro weight gain zea mays