["Normally" or "late" mowed roughage for ewes in the winter season?]

alimentation besoin nutritionnel brebis calidad composition globale cows crianza extensiva ewes extensive husbandry feed intake feeding forraje grosero fourrage grossier harvesting date hiver invierno necesidades de nutrientes noruega norway nutritional requirements oveja prise alimentaire (animaux) proximate composition quality rendement rendimiento roughage vaca vache winter yields