Summary:In this study, some blood and rumen metabolites and digestibility of sorghum and other feedstuffs were determined. Four Akkaraman rams weighing 55 kg were fed barley (1200g barley +800 g clover), corn (1200 g + 800 g clover), sorghum (1200 g + 800 g clover), and low quality clover (1200 g) in a 4x4 Latin square design experiment. Each period consisted of 10-day of an adaptation phase and 14-day of a sample collection phase. Blood and rumen samples were collected at the end of sample collection periods. One-way ANOVA with Duncan's Multiple Range Test was used in data analyses. pH values were 6. 62, 6.80, 6.74, and 7.22 and NH 3 levels were; 4.38, 3.12, 9.61 and 14.46 mg/dL for rams fed for sorghum, barley, corn and clover, respectively (p<0.05 for both). Nitrogen levels of blood serum were determined were 14.90, 8.55 10.00 and 18.70 mg/dL, respectively, in the same order (p<0.05). There was no significant difference in serum glucose and total protein levels. Apparent digestibilities were 83.06, 85.33, 69.01, and 59.34% for OM and 73.92, 67.92, 31.92, and 63.52 for CP in rams fed sorghum, barley, corn and clover, respectively (p<0.05 for both). There was no difference in digestibility of NDF, ADF and crude ash. In conclusion, due to presence of tannin, sorghum may not be suitable alternative to other grains as sole grain source for small ruminants.Key words: Digestibility, rams, Sorghum vulgare, tannins Düşük tanen içeren sorgum ve diğer konvansiyonel yem maddeleri ile beslenen Akkaraman koçlarda, bazı kan ve rumen metabolitleri ile besinlerin toplam sindiriminin belirlenmesi Özet: Bu çalışmada arpa (1200 g arpa + 800g yonca), mısır (1200 g mısır + 800g yonca), düşük tanen kapsayan (%0.7)Sorgum vulgare (1200 g sorgum + 800g yonca), ve düşük kaliteli yoncanın (1200 g yonca) bazı kan ve rumen parametreleri ile toplam besin maddelerinin sindirilme oranları belirlenmiştir. 4x4 Latin kare metodu ile yapılan klasik sindirim denemesinde ortalama 55 kg canlı ağırlığında 4 adet Akkaraman koç kullanılmıştır. Denemenin her periyodu 10 günü alıştırma 14 günü yedirme ve numune toplama olmak üzere toplam 96 gün devam etmiştir. Kan ve rumen numuneleri araştırma peryotlarının sonunda alınmıştır. Rumen pH'sı ve NH 3 düzeyleri arpa, mısır, sorgum ve yoncanın sırasıyla, 6.62, 6.80, 6.74, 7.22; 4.38, 3.12, 9.61, 14.46
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