Comparative Assessment of Forage Legume and Grass-legume Mixture Quality Ensiled with Biological and Chemical Preservatives

The paper presents research and production studies evaluating the forage legume ensiling quality treated with biological and chemical additives. Experiments were conducted when ensiling alfalfa in tight-head barrels (30L capacity), treated with bioconservants. The conducted investigation revealed preservatives that significantly improve the acid composition and nutritional value of silages and haylages. Compared to the control sample, silos treated with Bioamid-3 and SilactPro starter cultures showed higher lactic acid content by 46.3 and 59.2%, respectively, and better intake. The most effective chemical preservatives were organic mixtures with propionic acid (PRES No. 3) and low formic acid content (PRES No. 2). Their application increased the lactic acid level by 17.8 and 22.6%, adjusted the silage acidity (pH) at the scale of 3.8–3.9, and improved the feed energy value (NE) by 1.7–2.5%. Despite the proven efficiency of preservatives, compliance with the ensiling technology remains a strict requirement for the guaranteed fodder conservation and quality. © 2021, The National Academy of Sciences, India.