The interest in new alternative forages in Europe has increased in recent years. The nutritional composition and fermentation characteristics during different stages of ensiling were studied with Italian ryegrass (Lolium multiflorum Lam.) and winter cereal mixtures. The trial was carried out on a large-scale farm Galgamenti Agricultural Limited Company, Tura, Hungary. Two different forage mixes were studied: Mixture A (three types of Italian ryegrass 40% + two types of triticale 20%+ two types of oats 20%+ wheat 15%+ barley 5%) and Mixture B (three types of Italian ryegrass 55% + two types of winter oats 45%). Experimental field was 30.600 m2 by the treatments, respectively. The two different forage mixes were sown on 11th September 2017 (Mixture A: 75 kg seed/ha; Mixture B: 75 kg seed/ha) with depth of 2-5 cm. Plant protection treatment was not applied during the growing season. Cutting was carried out in heading stage of triticale by hand at 10 cm stubble height. The fresh Mixture A (dry matter 189 g/kg; crude protein: 161 g/kg DM; NDF: 485 g/kg DM) and the fresh Mixture B (dry matter 195 g/kg; crude protein: 159 g/kg DM; NDF: 519 g/kg DM) were wilted to 28-32% DM (24h) without any movement on the windrow. The wilted forage was picked up by hand and chopped by a forage harvester (John Deere 7300) on concrete surface with theoretical chop length of 9 mm (weight: 800 kg). Wilted and chopped material of 510 g were packed by hand into a glass jars (0.00072 m3 volume, n=5, total no. of minisilos = 15). Five laboratory silos per mixtures were opened on 7, 14 and 90 days after ensiling. Dry matter (DM), crude protein (CP), crude fiber (CF), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), ether extract (EE), ash, and total sugar of all treatments were determined. Additionally, pH and the concentration of ammonia-N, volatile fatty acids were measured in the ensiled mixtures.; Zanimanje za nova alternativna hraniva u Europi je poraslo zadnjih godina. Hranidbeni sastav i značajke fermentacije u raznim stadijima siliranja istraživani su na talijanskom ljulju (Lolium multiflorum Lam) i zimskim smjesama žitarica. Pokus je obavljen na velikoj farmi Galgamenti Agricultural Ltd. u Turnu u Mađarskoj. Proučavane su dvije različite smjese krmiva: smjesa A (tri vrste talijanskog ljulja 40% + dvije sorte tritikala 20% +dvije sorte zobi 20% + pšenica 15%+ ječam 5%) i smjesa B (tri vrste talijanskog ljulja 55% + dvije sorte zimske zobi 45%). Pokusno polje je iznosilo 30.600 m2 po tretmanu. Dvije različite mješavine krmiva posijane su 11. rujna 2017. godine, (smjesa A:75 kg sjemena/ha; smjesa B:75 kg sjemena/ha) na dubini od 2-5 cm. Zaštita biljaka nije primijenjena u sezoni rasta. Rezanje je obavljeno rukom za vrijeme stvaranja glavica tritikala na visini stabljike od 10 cm. Svježa smjesa A (suha tvar 189 g/kg; sirova bjelančevina: 161 g/kg DM;NDF: 485 g/kg DM) i svježa smjesa B (suha tvar 195 g/kg; sirova bjelančevina 159 g/kg DM;NDF:519 g/kg DM)je venula do 28-32% DM (24h) bez ikakvog micanja na prozoru. Povenulo krmivo je rukom brano i sjeckano kombajnom za krmivo (John Deere 7300)na betonskoj površini s teoretskom sjeckalicom duljine 9 mm (težine 800 kg). Povenuli i narezani materijal od 510 g stavljen je rukom u staklenke (volumena 0, 00072 m3, n=5 ukupni broj minisilosa =15). Otvoreno je pet laboratorijskih silosa po mješavinama 7.,14. i 90. dana nakon siliranja. Određeni su suha tvar DM, sirova bjelančevina CP, sirovo vlakno CF, neutralno deterdžentsko vlakno NDF, kiselo deterdžentsko vlakno ADF, kiseli deterdžentski lignin ADL, ekstrakt etera, pepeo i ukupni šećer u svim tretmanima. Osim toga, u siliranim smjesama izmjereni su pH i koncentracija amonijaka N, hlapive masne kiseline.