%0 Conference Proceedings %T The effect of propionic acid or propionate ammonium on chemical composition and in situ dry matter degradation of whole crop barley %A Danesh Mesgaran, Mohsen %A Vatandoost, Moosa %A Heravi Moussavi, Alireza %A Vakili, Seyed Alireza %J 60th Annual Meeting of the European Association for Animal Production %D 2009