ETTALA, T.; SEURANEN, A.; KREULA, M. The composition of the faecal microbial flora of milking cows on feeds containing urea as the sole or partial source of nitrogen . Agricultural and Food Science, [S. l.], v. 52, n. 1, p. 59–68, 1980. DOI: 10.23986/afsci.72031. Disponível em: https://journal.fi/afs/article/view/72031. Acesso em: 23 nov. 2024.