ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785
 

THE CHANGE IN THE FORAGE QUALITY OF CRESTED WHEATGRASS Agropyron cristatum L IN GRAZING AND NONGRAZING ARTIFICIALLY ESTABLISHED PASTURES

Published in Scientific Papers. Series A. Agronomy, Vol. LVIII
Written by Mevlüt TÜRK, Sebahattin ALBAYRAK, Yalçın BOZKURT

This research was conducted to determine the chemical composition of crested wheatgrass in artificial pasture from theyears 2010 to 2012. The mixture of the pasture used were alfalfa (Medicago sativa L.) + sainfoin (Onobrychis sativaLam.) + crested wheatgrass (Agropyron cristatum L.) + smooth bromegrass (Bromus inermis L.). Forage samples werecollected from grazing and non-grazing areas once every 15 days during the grazing seasons. The crude protein (CP),acid detergent fibre (ADF), neutral detergent fibre (NDF) contents, in vitro dry matter digestibility (IVDMD),phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg), ratios were determined on the crested wheatgrassforage samples. According to results, CP, IVDMD and K contents decreased throughout the grazing season, while ADFand NDF contents increased in grazing areas. In non-grazing areas, the CP content, IVDMD, Mg, P and K contentsdecreased throughout the grazing season, while ADF, NDF and Ca contents increased. The ADF, NDF, Ca contents ofcrested wheatgrass in non-grazed areas were higher than the grazed areas, while CP, IVDMD, P, Mg and K contents ofgrazed areas were higher than non-grazed areas. It can be concluded that the harvesting at the late stages caused areduction in forage quality of crested wheatgrass in grazing and non-grazing areas.

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