Produção de massa seca, composição botânica e valor nutritivo de forrageiras de inverno sobressemeadas em pasto de tifton 85 adubado com fertilizantes químicos e cama de aves

The objective of the study was to evaluate the productivity, botanical composition and nutritional value of tifton 85 subjected to different overseeds and fertilization. The experimental design was the RBD in a 3x3 factorial scheme, with 4 replications. The factors evaluated were overseeded forage species (exclusive tifton and overseeded with single black oat and intercropped with ryegrass) and fertilization (absence and presence of chemical fertilization or poultry litter). The establishment of black oat and ryegrass by overseeding with the use of chemical fertilization in tifton 85 promoted an increase in the production of forage DM to animals in grazing, with higher content of CP and IVDM and lower NDF.