Silva, José Marques da, Luiz Roberto Lopes de S. Thiago, and Esther Guimarães Cardoso. “Effect of Different Levels of Urea Added to a Mineral Salt Mixture Upon the Intake and Digestibility of Two Tropical Grass Hays”. Pesquisa Agropecuaria Brasileira 22, no. 09/10 (April 17, 2014): 1075–1083. Accessed November 12, 2025. https://apct.sede.embrapa.br/pab/article/view/14843.