SMALL RUMINANT RESEARCH, cilt.52, sa.3, ss.217-222, 2004 (SCI-Expanded)
Eight forages (dry grass hay, alfalfa, bromegrass, sainfoin, common vetch, oatgrass, wheat straw and barley straw) used for sheep nutrition in Eastern Turkey were evaluated for ruminal DM and CP degradation kinetics. Duplicate bags containing 3 g ground forages were incubated in the rumen of three ruminally cannulated Red Karaman rams for 4, 8, 16, 24, 48, 72 and 96 h. Rate and extent of ruminal digestion were estimated. Significant effects of forage species were observed in rapidly soluble and potentially degradable fractions, and degradation rates of DM and CP. The rapidly soluble DM and CP fractions were 17.4 and 30.3% for barley straw, 24.7 and 38.4% for wheat straw, 26.5 and 63.6% for oat grass, 29.0 and 29.7% for brome grass, 27.0 and 35.3% for alfalfa, 38.5 and 42.7% for sainfoin, 29.2 and 39.7% for common vetch, 28.0 and 31.0% for dry grass hay, respectively. The potentially degradable DM and CP fractions, respectively, were 49.7 and 26.5% for barley straw, 43.4 and 25.5% for wheat straw, 48.1 and 21.2% for oat grass, 46.8 and 49.6% for brome grass, 40.4 and 52.7% for alfalfa, 43.4 and 45.9% for sainfoin, 49.2 and 55.0% for common vetch, 55.4 and 50.0% for dry grass hay. The effective degradability (ED) of DM and CP were different (P < 0.01) between forage types. (C) 2003 Published by Elsevier B.V.