%0 Journal Article %A محتشمی, ب., میرزایی, ح.ر., امانلو, ح. %T Effect of Different Amounts of Protein and Varying Proportions of Corn Silage and Alfalfa Hay on Milk Production and Nitrogen Excretion of Dairy Holstein Cows %J Iranian Journal of Applied Animal Science %V 6 %N 3 %P 505-510 %D 2016 %R %U https://sanad.iau.ir/fa/Article/1023904