Coated urea and flavomycin on the supplementation of grazing heifers during dry and dry-rainy transition seasons - Sanchez, João Marcelo Dalmazo; Rocha, Cesar Oliveira; Oliveira, Fábio Cortez Leite de; Strozzi, Gabriela; Herling, Valdo Rodrigues (Annual Meeting of Brazilian Society of Animal Science, 2013)