THE INFLUENCE OF FERTILIZATION AND PRESERVATION ON THE CONTENT OF MYCOTOXINS IN SILAGE OF COCKSFOOT (DACTYLIS GLOMERATA L.)

The aim of this work was to assess the content of mycotoxins with regard to habitat and fertilization of cocksfoot crops (Dactylis glomerata L.) varieties Niva. Experimental forests were based on two sites with different altitudes. The harvest took place at the beginning of the earing (half of May) when the first cuts of the biomass were analyzed. The samples were analyzed for nutrients (ash, crude protein and crude fiber), the quality of the water extracts (ammonia, ethanol, pH, lactic acid, acetic acid) were evaluated, and the contents of mycotoxins (deoxynivalenol - DON, zearalenone - ZEA) were determined in green mass of silage. The data was assessed by analysis of variance ANOVA P < 0.05 on the surface. Fertilization did not influence the content of the organic nutrients in the silages. The difference (P < 0.05) in the quality of the silage extracts made from fertilized and unfertilized biomass, higher (P < 0.05) acetic acid content and a lower content of ethanol were noticeable. There was also noticeable higher content of ZEA in unfertilized stands. Silage did not show increased content of mycotoxins. The evaluation of the content of organic nutrients and acids proved that the quality of silage is very good.