[Anhydrous ammonia treatment of cereal straw in the feeding of cows and beef cattle]

alimentation des animaux ammonia ammoniac animal feeding avena sativa barley straw beef cattle bovin de boucherie bulls carcass composition composition de la carcasse contenido proteico cow milk crude protein dairy cows digestibilidad digestibility energy value feed intake fermentation ganado de carne lait de vache leche de vaca milk yield nutritive value paille paille d'orge paja paja de cebada paja de trigo prise alimentaire (animaux) protein content proteina bruta rendement laitier rendimiento lechero rumen secale cereale straw taureau toro vacas lecheras valeur nutritive valor nutritivo wheat straw