Exogenous Fibrolytic Enzymes and Length of Storage Affect the Nutritive Value and Fermentation Profile of Maize Silage

The addition of exogenous fibrolytic enzymes (EFEs) and length storage can affect the quality maize silage. Therefore, objective this study was to evaluate fermentative profile nutritive value silage treated with different doses EFEs ensiled for 30, 60, or 90 days. designed as completely randomized in a split-plot arrangement treatments, where four were assigned main plot three lengths sub-plot, replicates per treatment. Treatments were: Control, E100 (EFEs at 100 g/ton dry matter (DM)), E150 150 DM) E200 200 DM). EFE treatment did not increase digestibility nutrients but increased acetic acid concentration (1.87 vs. 1.18% DM), while decreasing content ethanol (0.02 0.08% ethyl lactate (7.50 15.9 mg/DM) acetate (5.58 10.6 mg/DM). Prolonged DM losses (7.05 2.32%) (2.19 1.03% decreased 0.09% In conclusion, silages nutrient during fermentation, it slightly concentrations esters content. Although statistically significant, such differences may be relevant biologically, due relatively low all treatments.