Production and quality of tropical grasses at different regrowth intervals in the Brazilian semiarid

The objective of this study was to evaluate the production and chemical composition three forage species at different regrowth intervals. A 3 x 4 randomized-block factorial design with (Andropogon, Buffel, Massai) four intervals (21, 35, 49, 63 days) used. There no interaction (p > 0.05) between interval on any components evaluated. crude protein content decreased but contents neutral detergent fiber, acid fiber hemicellulose increased increasing 0.05). Only ether extract were similar among grasses. significant observed < mass. Andropogon grass had highest mass days (3,270.1 kg ha-1 DM cut-1) productivity regardless (19.1 t year-1). Therefore, most productive tested species. Pastures should be managed shorter growth due level lowest fiber.