| Abstract (croatian) | Cilj istraživanja bio je utvrditi utjecaj dodatka sirutke u prahu provenutoj biljnoj masi poluprirodnog travnjaka na hranidbenu vrijednost fermentirane krme i kvalitetu fermentacije u silosu. Korišteno je pet razina dodatka sirutke u prahu kg-1 silirane suhe tvari (ST) krme poluprirodnog travnjaka: (i) 0 g; (ii) 13 g; (iii) 65 g; (iv) 130 g; (v) 260 g (tretmani T0, T13, T65, T130 i T260 respektivno). Biljna je masa silirana u laboratorijskim silosima. Silosi su otvoreni 40. dan od zatvaranja radi procjene hranidbene vrijednosti fermentirane krme i kvalitete NIR spektroskopijom. Zaključeno je da sirutka u prahu, kao dodatak provenutoj biljnoj masi poluprirodnog travnjaka prilikom siliranja, linearno povećava sadržaj ST (P<0,05), korigirane ST (KST) (P<0,01), sirovih proteina (SP) (P<0,001), neutralnih detergent vlakana (NDV) (P<0,001), fermentirajuće metaboličke energije u metaboličkoj energiji (FME/ME) (P<0,001), probavljivost organske tvari u ST (D-vrijednost) (P<0,001), faktor konzumacije za goveda (P<0,001), faktor konzumacije za ovce (P<0,001), a smanjuje pH vrijednost (P<0,05), sadržaj organske tvari (OT) (P<0,001), sadržaj amonijskog dušika (NH3-N) (P<0,001) i rezidua šećera (P<0,001) u fermentiranoj krmi. |
| Abstract (english) | The aim of the study was to determine the effect of dried whey supplementation, at ensiling forage from semi-natural grassland, on the nutritive value of fermented forage and the quality of fermentation. Wilted forage from semi-natural grassland was supplemented with five levels of dried whey kg-1 of dry matter (DM) at ensiling into laboratory siloses: (i) 0 g; (ii) 13 g; (iii) 65 g; (iv) 130 g; (v) 260 g (treatments T0, T13, T65, T130 and T260 respectively). The siloses were opened after 40 days of ensiling to evaluate the nutritive value of fermented forage and the fermentation quality by NIR spectroscopy. It was concluded that dried whey, supplemented at ensiling to wilted forage from semi-natural grassland, linearly increases the content of DM (P<0.05), corrected DM (CDM) (P<0.01), crude protein (CP) (P<0.001), neutral detergent fiber (NDF) (P<0.001), fermenting metabolic energy in the metabolic energy (FME/ME) (P<0.001), digestibility of organic matter (OM) in the DM (D-value) (0.001), intake factor for cattle (P<0.001), intake factor for sheep (P<0.001), while reducing the pH (P<0.05), OM (P<0.001), ammonia nitrogen (NH3-N) (P<0.001) and sugar residues (P<0.001) in fermented forage. |
