The objective of this study was to evaluate the nutritive value and “in situ” degradability of Marandu grass at different locations within the pasture in silvopastoral systems with different densities of babassu palm (Low density:39, Medium density:72 and High density:92 palm/ha). The silvopastoril system consisted of Brachiaria brizantha, the forage specie and Babassu palm Orbignia phalerata Martius, tree species. Pre-dried samples of forages were used for determination of dry matter (DM), organic matter (OM), neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin, crude protein (CP), cellulose and hemicellulose. One Santa Inês male sheep, castrated, cannulated in the rumen, with an average body weight of 63 kg was used for ruminal incubation. Samples of forages (5 g) were incubated in the rumen in nylon bags. For each incubation time, 4 bags were used. The experimental design was a completely randomized design with factorial arrangement 3 × 3 (3 incubation times: 6, 24 and 96 h and 3 sampling sites within the pasture: no interference of shadow - NS, an intermediary INT and shadow interference - SI). There was no effect (P ≥ 0.05) of the density of palm trees or locations within the pasture on the content of NDF, ADF, lignin, cellulose and hemicellulose. The densities in grassland Palm did not influence the chemical composition of grass Marandu only DM content. The sampling sites influenced (P ≤ 0.05) content of CP and DM. Higher rates of disappearance of DM (RDDM) was observed in 96 h. At all densities, NS and SI had higher RDDM. Pastures with low density of palm (LDP), the location INT showed higher degradation rate and higher digestibility for passages rates 2, 5 and 8%. Locations within the SSPs reviews had a little influence on the nutritive value of grass Marandu, however, the local NS, at higher densities showed the higher protein content. In all pastoral environments, the NS and SI locations had higher DMS and location INT in SSPs with LDP and MDP smaller DMS, but higher degradation rate and effective digestibility, respectively.