TY  - JOUR
AU  - Rafieei, H.
TI  - Responses of Milk Urea Nitrogen Content to Dietary Rume Degradable Protein Level in Lactating Holstein Dairy Cows
JO  - Iranian Journal of Applied Animal Science
VL  - 1
IS  - 2
SP  - 111
EP  - 116
PY  - 2011
DO  - 
ER  -