Author/Authors :
GÜRSOY, Esra İl Gıda, Tarım ve Hayvancılık Müdürlüğü, Turkey , MACİT, Muhlis Atatürk Üniversitesi - Ziraat Fakültesi - Zootekni Bölümü, Turkey
Abstract :
This study was carried out to determine the in vitro gas production values, gas production parameters, organic matter digestibilities (OMD), metabolizable energy (ME), net energy lactation (NEL) and nutrients of some grass forages grown as naturally in the pastures of Erzurum province. In this study, 8 grasses [cocksfoot (Dactylis glomerata), crested wheatgrass (Agropyron cristatum), red fescue (Festuca rubra), sheep ball (Festuca ovina), tawny bromine (Bromus variegatus), blue split (Agropyron intermedium), kelp tail grass (Phleum pratense), meadow bluegrass (Poa pratensis)] were used. One Holstein bull with ruminal cannulas was used to get rumen fluid for gas production technique. Gas productions were determined at 3, 6, 9, 12, 24, 48, 72 and 96 h. It was observed significant differences among the grass forages in terms of chemical composition (DM, crude ash, OM, CP, EE, NDF, ADF, ADL, hemi sellulose, and sellulose) (P 0.01). The differences among the grass forages in the chemical composition affected the in vitro gas productions and gas production parameters of forages. The findings obtained from the present study generally showed that in vitro gas production, ME, NEL, OMD values of forages which were rich in CP, EE, CA and poor in ADF, NDF, ADL had convinging results according to other forages studied.
