The objective of this study was to evaluate the grazing of goats in a grass monoculture system and in intercropping systems of grass + legumes. A randomized block design was adopted, with the treatments arranged in a split-plots scheme. The plots consisted of three cropping systems: monoculture—Andropogon gayanus cv. Planaltina; mixture I—A. gayanus cv. Planaltina + Stylosanthes cv. Campo Grande; and mixture II—A. gayanus cv. Planaltina + Calopogonium mucunoides. The subplots consisted of two grazing cycles. The highest (P = 0.04) total forage mass (TFM) was recorded in the mixture I (A. gayanus cv. Planaltina + Stylosanthes. cv. Campo Grande), which was 2.6 ± 0.1 tons DM/ha. The crude protein (CP) was lower in the monoculture which also showed the highest content of neutral detergent fiber (NDF). The grazing time in the monoculture was the longest (8.23 ± 1.14 h). The goats used a longer time for rumination (P < 0.01) in the mixture I. The lowest (P < 0.01) bite rate was found in mixture II in comparison to the other cropping systems. The bite rate was higher (P < 0.01) in grazing cycle II than in all the other cropping systems. In mixture I, the Stylosanthes cv. Campo Grande, and in mixture II, the C. mucunoides presented the lowest (P < 0.01) δ¹³C value in the forage. The highest forage intake occurred in the mixture systems (P < 0.01) in comparison to the monoculture. The mixture pastures presented better results for forage mass, nutritive value, and intake in comparison to the monoculture.

这项研究的目的是评估在草地单一种植系统和草木间作系统中山羊的放牧。采用随机区组设计，将治疗安排在分裂图方案中。该地块由三种耕作系统组成：单种养殖— Andropogon gayanus cv。Planaltina; 混合物I. A. gayanus cv。Planaltina +  Stylosanthes简历。大坎普市 和混合物II- A. gayanus cv。Planaltina +  Calopogonium mucunoides。子图由两个放牧周期组成。 混合物I（A. gayanus cv。Planaltina +  Stylosanthes）记录到最高（P = 0.04）总饲料质量（TFM）。简历。大坎普（Campo Grande），为2.6±0.1吨DM /公顷。单一培养物中的粗蛋白（CP）较低，这也显示出最高含量的中性洗涤剂纤维（NDF）。单种养殖的放牧时间最长（8.23±1.14 h）。山羊 在混合物I中使用更长的时间进行反刍（P <0.01）。 与其他种植系统相比，混合物II中的叮咬率最低（P <0.01）。 放牧周期II中的被咬率高于所有其他耕种系统（P <0.01）。在混合物I中，Stylosanthes cv。大坎普，并且在混合物II中，C. mucunoides呈现最低（P  <0.01）δ ¹³草料中的C值。 与单一栽培相比，混合系统中的草料摄入量最高（P <0.01）。与单一牧草相比，混合草场在饲草质量，营养价值和摄入量方面表现更好。