Setälä, Jouko, Liisa Syrjälä-Qvist, and Esko Poutiainen. “Feeding of High Producing Dairy Cows According to Rumen Undegradable Protein Requirements in Grass Silage Based Diet”. Agricultural and Food Science 56, no. 1 (January 1, 1984): 73–82. Accessed May 18, 2024. https://journal.fi/afs/article/view/72160.