SUMMARY
This study aimed to evaluate the chemical quality of silage and hay Gliricídia in different residue heights. The experimental design in randomized blocks in a factorial scheme (3×2), consisting of three residue heights (70, 90 and 110 cm) and two forage conservation procedures (silage and hay) with four replications. For pH values Gliricídia fresh and silage did not differ in relation to waste time, unlike the concentration of ammonia nitrogen (NH3-N), where the height of 70 cm, had lower values. The cutting height did not influence gas losses, effluents and recovery of dry matter silage Gliricídia. Hay had higher crude protein (CP). The lowest dry matter (DM) and 70 cm for the hay, gave him less accumulation of dry matter, with still higher values of ether extract (EE) and neutral detergent fiber (NDF) in relation to silage for heights 70 and 90 cm. The plant was maintained at a higher height (110 cm), EE and accumulated higher concentration of fibrous material. Silage Gliricídia provides suitable pH values independent of the residual time, and does not influence the fermentation losses of silage, however, there are high losses of NH3 for residual height 110 cm. DM, EE and NDF are influenced heights of waste, as well as the conservation methods.
Keywords:
conservation; forage; legumes; ruminants