[Ryegrass (L. Multiflorum Lam.) silage in the feeding of the dairy cattle. 1: Effect of the ensiling technique on production and rumen fermentation]

alimentation des animaux alimentazione zootecnica animal feeding bovin laitier dairy cattle ensilado ensilage (traitement) essai fermentation fermentazione ganado de leche lolium multiflorum nutritive value prove pruebas ration rations silage making trials valeur nutritive valor nutritivo valore nutritivo