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Silva, J. M. da; Thiago, L. R. L. de S.; Cardoso, E. G. Effect of Different Levels of Urea Added to a Mineral Salt Mixture Upon the Intake and Digestibility of Two Tropical Grass Hays. PAB 2014, 22 (09/10), 1075-1083. https://doi.org/10.1590/S1678-3921.pab1987.v22.14843.