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Articles by Sibel Celik
Total Records ( 3 ) for Sibel Celik
  Murat Demirel , Sibel Celik , Cuneyt Temur , Mehtap Guney and Savas Celik
  This study was conducted to determine in vivo digestibility and fermentation property of various silages made of green herbage of Corn (C) and corn-soybean mixtures at different rates (90% corn + 10% soybean (90C10SB), 80% corn + 20% soybean (80C20SB), 70% corn + 30 soybean (70C30SB)). Each mixture was prepared at rates given above on fresh material basis and ensiled in 120 L plastic barrels (a total of 20, 5 replicate for 4 treatments) for 90 days. pH values of C silage were higher and acetic acid levels were lower than that of 80C20SB (p<0.05). Concentrations of lactic and propionic acid of corn-soybean mixture silages were found to be similar to C silage. Digestibility of DM, OM, ADF and NDF were higher in C silage than that of other silages, whereas digestibility of CP and EE of 80C20SB silage were higher than corn silage (p<0.05). It was concluded that ensiling corn with 20 or 30% soybean addition at green herbage basis generates desirable outcomes for fermentation properties and digestibility of crude nutrients.
  Murat Demiirel , Duran Bolat , Sibel Celik , Yunus Bakici and Ahmet Tekeli
  The objectives of this study were to evaluate fermentation qualities and digestibilities of silages prepared from sorghum (S) and sunflower (SF) alone and the mixtures of sorghum and sunflower at differing rates 75% sorghum+25% sunflower (75S25SF), 50% sorghum+50% sunflower (50S50SF) and 2% 5sorghum+75 sunflower (25S75SF)] ensiled in 120 L plastic barrel for 90 days. pH values of sorghum and the mixtures were significantly lower than that of sunflower silage (p<0.05). Concentrations of lactic, acetic, propionic and butyric acids were significantly greater in sunflower silage compared with sorghum silage (p<0.05). Silage acid concentration tended to decrease with increasing levels of sorghum in the mixtures. While concentrations of DM, OM and NDF were lower, concentrations of CP and EE were higher in sunflower than sorghum silage (p<0.05). Sunflower had greater DM, CP and EE but lower ADF and NDF digestibilities compared with sorghum silage (p<0.05). As percentage of sunflower increased, DM, CP and EE digestibilities increased but ADF and NDF digestibilities decreased in the mixtures. It has been concluded that better quality silages could be obtained by mixing sorghum and sunflower at 50% ratio.
  Mehtap Guney , Murat Demirel , Sibel Celik , Yunus Bakici and Taner Levendoglu
  Silage type sorghum harvested at milk stage were ensiled for 70 days with no additive or differing levels of Urea (U), Molasses (M) and Urea+Molasses (U+M) to determine silage quality, in vitro organic matter digestibilities (IVOMD) and metabolic energy contents (ME). According to physical properties, all silages are either excellent or satisfactory. While addition of urea decreased organic matter digestibilities and metabolic energy contents of the silages, it was not negatively affect fermentation quality. It has been noted that it is possible to produce high-quality silages with all of the additives and 0.5U%+5M% addition into silages produced the best quality silages in terms of fermentation quality criteria, organic matter digestibility and metabolic energy contents.
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