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Hodnocení kvality siláží vyrobených z pícnin čeledi lipnicovitých
Richterová, Bára
The thesis is focused on the assessment of the quality of the fermentation process in various grass species. In the literary part we characterize grasses of the family Poaceae. The next part is devoted to the conservation of silage grasses with possible threats to ensilage and the use of silage additives in production. In the practical part, a total of 12 grass samples were monitored. They were founded in two variants, fertilized and non-fertilized with nitrogen, treated and untreated with silage additive. Grasses were harvested from the microsilage vessels after 60 days and analyzed for selected parameters. The results were evaluated by graphs. Ammonia, pH, LA, AA, biogenic amines were further processed by ANOVA. Using the values from the analyzes, we evaluated the quality of the fermentation process, when the samples of festulolium, festulolium N were the best, among which there was a statistically significant difference at 95 % confidence level. In the analytical evaluation the worst sample of the lobed fur without treatment was found to have poor quality silage fermentation. It also contained the most biogenic amines but there were no statistically significant differences between the samples (p <0.05). For samples of the lobed foot treated with a chemical additive, we can conclude that the use of the chemical preservative SoftAcid improved the quality of the fermentation.
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