Anatomical and nutritional characteristics of Megathyrsus maximus genotypes under a silvopastoral system - Pereira, Mariana; Almeida, Roberto Giolo de; Macedo, Manuel Claudio Motta; Santos, Valéria Ana Corvalã dos; Gamarra, Erick Lemes; Castro-Montoya, Joaquín; Lempp, Beatriz; Morais, Maria da Graça (Tropical Grasslands-Forrajes Tropicales, 2021)