Biotechnological strategies for improving corn silage: evaluating AMs-Based biol as a fermentation enhancer.

Abstract

Corn silage is a fundamental component in ruminant nutrition, but its preservation depends on optimizing fermentation to maintain nutritional quality and aerobic stability. This study evaluated the effects of Effective Microorganisms Activated Solution (AMS)-based biol as a natural fermentation enhancer in silage under tropical conditions. Treatments included AMS-based biol at different doses (1, 1.5, and 2 L per ton-1) and untreated control (UN). Silage pH, chemical composition, aerobic stability, and dry matter recovery were analysed. Results showed that AMS-based biol enhanced fermentation efficiency, reducing pH values compared to the control (3.98 vs. 3.78, P < 0.001). Aerobic stability improved significantly, particularly at 1.5 L/t, where temperature increases after exposure to air were minimized (0.01 vs. 1.68°C in UN, P < 0.001). Dry matter recovery was higher in treated silages (4.6-4.8 vs. 4.5 kg in UN, P = 0.005). Crude protein content showed a slight decline at higher AMS doses (6.3-5.8% vs. 7.0% in UN, P = 0.002), while fibre composition varied significantly among treatments. These findings indicate that AMS-based biol is a viable alternative to synthetic additives, improving silage quality and preservation. Future research should focus on optimizing application rates and assessing long-term effects on animal performance.