The utilization of agro-industrial by-products and the exploitation of marginal areas; (proceedings of the third National Congress, 18-20 May 1978, Sassari, Italy)

agricultural wastes aliment pour animaux alimentation des animaux animal feeding aprovechamiento de desechos bovin cattle digestibilidad digestibility feeds ganado ganado bovino graine de colza grazing industria industrie industry livestock marginal land melasse melaza molasses nutritive value paille paja pastoreo piensos rapeseed semilla de colza straw subproductos terre marginale tierras marginales valeur nutritive valor nutritivo waste utilization