Namen diplomskega dela je bil spremljati ključne kazalce kakovosti travne silaže skozi različne faze zorenja (21., 28., 35., 42., 63. in 91. dan po siliranju) ter določiti optimalni čas za začetek krmljenja. Poskus je bil izveden s steklenimi vrči (3 L) in plastičnimi vedri (25 kg), v katere je bila nameščena silažna masa, obtežena z mivko in zatesnjena za preprečitev dostopa zraka. V oba tipa posod so bili nameščeni EL-USB-2 senzorji za beleženje temperature. Vzorci so bili analizirani v laboratoriju Landwirtschaftliche Kommunikations und Service (LKS) po Cornell sistemu ter po metodi aerobne stabilnosti. Rezultati so omogočili primerjavo kakovosti silaže glede na čas fermentacije in vrsto posode. Vsebnost suhe snovi (SS) je bila 21. dan v steklenem vrču 37,2 %, do 91. dne pa se je zmanjšala na 35,6 %. V plastičnem vedru je bila začetna vsebnost SS nekoliko nižja (36,6 %), nato pa se je med fermentacijo povečala na 39,9 %. pH je bil na 21. dan v steklenem vrču 5,3 in se znižal na 5,0, medtem ko je bil v plastičnem vedru 5,2 in se je do 91. dne znižal na 4,9. Vsebnost metabolne energije (ME) se je v steklenem vrču zmanjšala z 10,7 MJ/kg SS na 10,3 MJ/kg SS, v plastičnem vedru pa se je rahlo povečala z 10,5 MJ/kg SS na 10,6 MJ/kg SS. Neto energija za laktacijo (NEL) se je v steklenem vrču znižala z 6,44 MJ/kg SS na 6,19 MJ/kg SS, v plastičnem vedru pa se je rahlo povečala z 6,34 MJ/kg SS na 6,37 MJ/kg SS. Aerobna stabilnost je bila v steklenem vrču najvišja na 63. dan (5 dni), v plastičnem vedru pa na 42. in 63. dan (prav tako 5 dni). Statistična analiza je pokazala, da med silažo iz steklenih vrčev in plastičnih veder ni bilo značilnih razlik, kar kaže, da vrsta posode ni bistveno vplivala na kakovost fermentacije.The aim of the thesis was to monitor key quality indicators of grass silage throughout different stages of maturation (21st, 28th, 35th, 42nd, 63rd, and 91st day after ensiling) and to determine the optimal time to begin feeding. The experiment was conducted using glass jars (3 L) and plastic buckets (25 kg), into which the silage mass was placed, weighted with sand, and sealed to prevent air ingress. EL-USB-2 sensors were installed in both types of containers to record temperature. The samples were analyzed at the Landwirtschaftliche Kommunikations und Service (LKS) laboratory using the Cornell system and the aerobic stability method.The results enabled a comparison of silage quality based on fermentation time and container type. The dry matter (DM) content in the glass jar was 37.2% on day 21, decreasing to 35.6% by day 91. In the plastic bucket, the initial DM content was slightly lower (36.6%), but increased during fermentation to 39.9%. The pH value in the glass jar was 5.3 on day 21 and decreased to 5.0, while in the plastic bucket it was 5.2 and dropped to 4.9 by day 91. The content of metabolizable energy (ME) in the glass jar decreased from 10.7 MJ/kg DM to 10.3 MJ/kg DM, while in the plastic bucket it slightly increased from 10.5 MJ/kg DM to 10.6 MJ/kg DM. Net energy for lactation (NEL) decreased in the glass jar from 6.44 MJ/kg DM to 6.19 MJ/kg DM, whereas in the plastic bucket it slightly increased from 6.34 MJ/kg DM to 6.37 MJ/kg DM. Aerobic stability in the glass jar was highest on day 63 (5 days), and in the plastic bucket on days 42 and 63 (also 5 days). Statistical analysis showed no significant differences between the silage from the glass jars and that from the plastic buckets, indicating that the type of container did not significantly affect the quality of fermentation
