Substitution of rumen degradable nitrogen with urea in sheep fed low quality Eragrostis curvula hay. Scientia Agricola, [S. l.], v. 73, n. 6, p. 498–504, 2016. DOI: 10.1590/0103-9016-2015-0277. Disponível em: https://www.revistas.usp.br/sa/article/view/121814.. Acesso em: 30 apr. 2024.