1.
Kreula M, Rauramaa A. Aspects of the metabolism of 14C-labelled compounds by cows on a protein-free feed with urea and ammonium salts as the sole source of nitrogen. AFSci [Internet]. 1979Jan.1 [cited 2024Nov.23];51(1):486-9. Available from: https://journal.fi/afs/article/view/72010