EN
The aim of the study was the biological, chemical and microbiological evaluation of row silage maize. Changes in the amount of DON and ZON during the fermentation process of the maize and then after a week-long oxygen exposure of the silage (stability evaluation) were evaluated. Samples for the study were taken from maize type F70 (Flint type grain from Austria) which had been ensilaged after harvesting in the middle of September 2003 in the following ways (5 microsilos each). The first treatment: 1 - control - maize; 2 - maize + 0.25% KemiSile 2000; 3 - maize + 0.2 Lactacel L - enzymatic preparation (Lactobacillus plantarum 10⁸ CFµg⁻¹ + enzymes). After 12 weeks of fermentation the quality of the silage, microbiological analysis and the presence of Fusarium toxins were evaluated. Additionally, the same analysis was carried out on the silage which had undergone the 7-day oxygen exposure. The level of both mycotoxins and moulds increased again (especially Aspergillus, Penicillium and Mucor genera) during oxygen exposure of the silage. KemiSile 2000 additive had a positive influence on the quality and stability of the silage.