application of additives on nutritive value and digestibility of maize silage (Andrae et al, 2001, Thomas et al., 2001, Jensen et al., 2005, Filya and Sucu, 2010, Hetta et al., 2012). Loučka and Jambor (2009) published differences in the content of selected nutrients and digestibility of whole plants in five hybrids with the same earliness (medium early FAO 300). Cherney et al. (2004) monitored fermentation characteristics of maize hybrids, selected to vary in dry matter (DM), crude protein (CP) and crude fibre digestibility (CFD), whereas Russell et al. (1992) demonstrated that the differences in the nutritional value of silage were not influenced only by individual hybrids, but also by methods of tillage and agro-technical measures.