SETÄLÄ, J.; SYRJÄLÄ-QVIST, L. Untreated and formaldehyde-treated urea as nitrogen sources for lactating dairy cows . Agricultural and Food Science, [S. l.], v. 54, n. 1, p. 43–52, 1982. DOI: 10.23986/afsci.72088. Disponível em: https://journal.fi/afs/article/view/72088. Acesso em: 25 dec. 2024.