Chemical characterization and in vitro biological activity of four tropical legumes, Styzolobium aterrimum L., Styzolobium deeringianum, Leucaena leucocephala, and Mimosa caesalpiniaefolia, as compared with a tropical grass, Cynodon spp. for the use in ruminant diets - Longo, C; Hummel, J; Liebich, J; Bueno, Ives Cláudio da Silva; Burauel, P; Ambrosano, Edmilson Jose; Abdalla, Adibe Luiz; Anele, U Y; Südekum, K-H (Czech Journal of Animal Science, 2012)