Vliv vybraných faktorů ovlivňujících fermentační proces a využití živin kukuřičné siláže v bachoru

Corn silage quality is determined by fermentation process quality and nutrient utilization (i.e. starch and fiber). The goal of this trial was to observe the effect of plant protection (against European corn borer), used hybrid and silage additive on the fermentation process quality and ruminal degradability of starch and neutral detergent fiber. The trial was realized on three localities. For the rate of degradability assessment we used the method in sacco. We found high significant differences in the particular and total acid content. On the first locality, the silages from protected plants contained more acids (9,89 g/kg dry matter = DM) than control (7,72 g/kg DM). On other localities was the situation opposite. The lowest content of silage acids and titrable acidity values was measured in the chemical treated silages. These silages had a highest content of ethanol (3,47; 2,83; 4,38 g/kg DM). We confirmed the effect of plant protection on ruminal starch degradability on the first locality. The plant protection led to the decreasing of the starch degradability (45,97 resp. 48,02 %). The NDF degradability did not affect by any experimental factor