The research was carried out in 2011-2013 in a farm producing meadow grass silage in the form of cylindrical bales. The objective of the research was to determine the quality and value of the nutrititional values of silage depending on drying ensiled meadow grass influenced by the use of a tine-type conditioner and a roller mill. Three variants of mowing were assumed: without conditioner, with a tine-type conditioner and with a roller mill. A basic chemical composition was marked in silage with a standard method and the content of organic acids with the use of gas chromatograph. Nutritional value of silage was assessed in Flieg-Zimmer scale. It was found out that mowing green forage with the use of a conditioner favourably influences the quality of silage. Silage obtained from green forage, which was mowed with the use of a tine-type conditioner had the highest content of dry mass (415.7 g∙kg -1), a slightly lower content of dry mass was reported upon the use of a roller mill (365.6 g∙kg -1), and the lowest for green forage silage mowed without a conditioner (274.2 g∙kg -1). Appropriate degree of drying was an essential element influencing the course of the ensilaging process and the silage quality.