Effects of functional oils and monensin on metabolic, ruminal and productive parameters of lactating holstein cows - Martins, Maurício Furlan; Silva Filho, C. G; Martins, Mellory Martinson; Reis, Bárbara Roqueto dos; Pinheiro, Maria da Graca; Torrent, Joan; Saran Netto, Arlindo; Leme, Paulo Roberto (Congreso de La Asociación Latinoamericana de Producción Animal, 2015)