%0 Journal Article %A Rafieei, H. %T Responses of Milk Urea Nitrogen Content to Dietary Rume Degradable Protein Level in Lactating Holstein Dairy Cows %J Iranian Journal of Applied Animal Science %V 1 %N 2 %P 111-116 %D 2011 %R %U https://sanad.iau.ir/fa/Article/1023358