Efficiency of dietary nitrogen utilization and digestive metabolism of dairy cows fed different nitrogen sources and sugarcane - Naves, Julianne de Rezende; Jesus, E. F. de; Martins, C. M. M. R; Tomazi, Tiago; Freitas Júnior, José Esler de; Rennó, Francisco Palma; Santos, Marcos Veiga dos (The Journal of Animal & Plant Sciences, 2015)