HRANJIVOST TRAVNIH SILAŽA BAZIRANA NA SADRŽAJU SUHE TVARI

Total of 477 grass silage samples of different origin and quality were analysed by NIR spectroscopy to determine crude protein (CP), neutral detergent fibre (NDF), digestible organic matter (OM) in the dry matter (DM) (D-value), metabolizable energy (ME), pH value and the ammonium nitrogen (NH3-N). According to DM content (g kg-1 fresh sample), the samples were divided into 8 classes: (1)> 228; (2) 229-313; (3) 314-398; (4) 399-483; (5) 484-568; (6) 569-653; (7i) 654-738; (8) 0.005) in NDF and pH value. It was concluded that increased DM concentration in silage samples was not a result of –grass wilting before ensiling but of advanced grass maturity at harvest.Ukupno 477 uzoraka travnih silaža različitoga porijekla i kvalitete analizirano je NIR spektroskopijom. Utvrđen je sadržaj sirovih proteina (SP), neutralnih detergent vlakana (NDV), probavljive organske tvari (OT) u suhoj tvari (ST) (D-vrijednosti), metaboličke energije (ME), pH vrijednosti i amonijskoga dušika (NH3-N). Prema sadržaju ST (g kg-1 svježeg uzorka), uzorci su nasumce razvrstani u 8 razreda: (1) 739. Povećanjem sadržaja ST, opadao je (P<0,05) sadržaj SP, D-vrijednost, ME, a povećavao se (P