%0 Journal Article %T Ammonia and greenhouse gas emissions from housed Holstein steers fed different levels of diet crude protein %A Chiavegato, M. B. %A Powers, W. %A Palumbo, N. %J Journal of Animal Science %V 93 %N 1 %P 395-404 %@ 0021-8812 %D 2015-01-01 %~ DeepDyve