Supplementary grain and sodium propionate increase the liveweight gain and glucose entry rates of steers given molasses diets

acide gras volatil alimentation alimentation des animaux animal feeding azote blood blood sugar boeuf bovin buey bullocks cattle digestibilidad digestibility digestion du rumen excretion feed intake feeding gain de poids ganado bovino ganancia de peso glucosa glucose insulin insulina insuline liveweight gain melasse melaza metabolism metabolisme metabolismo molasses nitrogen prise alimentaire (animaux) propionate (sel) propionates (salts) propionatos (sales) rumen digestion rumen fermentation sang sangre sodio sodium sorghum steers sucre du sang suplementos supplements urea uree uses usos utilisation volatile fatty acids weight gain