[Green feed preservation: Good silage is not a matter of pure chance]

agent de conservation calidad crude fibre digestibilidad digestibility ensilado ensilage (produit) ensilage (traitement) ensilaje fanaison fauchage feed grasses fertilisation fertilizer application fibra bruta fibre brute mais maize marchitamiento mowing nutrientes nutrients nutritive value preservadores preservatives quality siega silage silage making silo silos substance nutritive temps tiempo time valeur nutritive valor nutritivo wilting