Gastrointestinal nematode infection in beef cattle raised in silvopastoral and conventional systems in São Paulo state, Brazil - Oliveira, M. C. S; Nicodemo, M. L. F; Pezzopane, José Ricardo Macedo; Gusmão, M. R; Chagas, A. C. S; Giglioti, R; Bilhassi, T. B; Santana, C. H; Gonçalves, T. C; Rabelo, M. D; Néo, T. A. (Agroforestry Systems, 2017)