Marta Moura Kohmann1, Lynn E. Sollenberger2, Jose C.B. Dubeux Jr.3, Nicolas DiLorenzo3, Maristela de Oliveira Bauer4, Sabrina Saraiva Santana5 and Leonardo S. B. Moreno6, (1)Range Cattle Research and Education Center, University of Florida, Gainesville, FL, (2)3105 McCarty Hall B, PO Box 110500, University of Florida, Gainesville, FL, US, (3)North Florida Research and Education Center, University of Florida, Marianna, FL, (4)Engenharia Rural, Universidade Federal do Espirito Santo, Alegre, BRAZIL, (5)Departamento de Zootecnia, Universidade Federal de Viçosa, Viçosa, Brazil, (6)Agronomy Department, University of Florida, Gainesville, FL