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Articles by Yunus Bakici
Total Records ( 4 ) for Yunus Bakici
  Murat Demirel , ?mer Faruk Kurbal , Turgut Ayg?n , Sibel Erdo?an , Yunus Bakici , Ayhan Yilmaz and Hasan ?lker
  A study was conducted with 80 Karaka ewes and their lambs to investigate the effects of various feeding levels during mating period on the reproductive performance. Group 1 (control) was grazed only on pasture and Group 2, 3 and 4 were supplied with 200, 300, 600 g/head/day rolled barley, respectively, in addition to pasture. Supplementary feeding was initiated three weeks before mating and lasted for six weeks. There were increases (P<0.01) in live weights in Karaka ewes in response to supplementary feeding during feeding period. While supplementary feeding reduced infertility rate (P<0.05), this treatment did not affect other reproductive traits. The effects of sex, birth type and birth weight of ewe on the lamb birth weight were significant (P<0.01). Birth type affected weaning weight, daily live weight gain and survivability at weaning (P<0.05). It was concluded that supplementary feeding in addition to pasture could be utilized to improve reproductive efficiency of Karaka ewes, however, more detailed studies should be carried out to determine the appropriate supplementary feeding regimen and supplementary feeding period during mating period for this breed in regional conditions.
  Murat Demirel , Omer Faruk Kurbal , Turgut Aygun , Sibel Erdogan , Yunus Bakici , Ayhan Yilmaz and Hasan Ulker
  A total of 78 Norduz ewes and their lambs were used in the study. Group 1 (control) was grazed only on pasture and Group 2, 3 and 4 were supplied with 200, 300, 600 g-1 head day -1 rolled barley, respectively, in addition to pasture. There were increases in live weights in Norduz ewes in response to supplementary feeding during feeding period (P<0.01). Feed supplementation during mating period did not affect reproductive traits. The effect of ewe age on the twinning rate and litter size (P<0.01) and fecundity (P<0.05) was significant. The mean lamb birth weight, weaning weight, daily live weight gain and survivability at weaning were 4.65 kg, 19.29 kg, 192 g and 96.43%, respectively. In conclusion, supplementary feeding in addition to grazing during breeding season affected live weight in Norduz ewes but not other reproductive traits. Further detailed studies should be carried out in order to determine the effects of supplementary feeding on reproductive traits in this breed.
  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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