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Articles by Murat Demirel
Total Records ( 5 ) for Murat Demirel
  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 Demirel , Turgut Ayg?n , C?neyt Temur , Ali ?ivi and Muhlis Macit
  This study was carried out to determine the effects of different levels (0 mg, 40 mg, 60 mg and 80 mg / kg concentrate) of salinomycin on growth performance characteristics approximate 8 months of age 39 Karaka? ram lambs. was investigated. The lambs were randomly divided into four groups- a control and 3 treatment groups at the beginning of fattening period. The diet given to the control and treatment groups consisted of concentrate and grass hay. Treatment groups received a diet containing 40, 60 and 80 mg salinomycin / kg concentrate during a 53-day fattening period. The lambs were fed ad-libitum after adaptation period to concentrate feed. But chopped alfalfa hay was fed daily 100 g per lamb in a day during the fattening period for groups. The daily live weight gain and feed conversion efficiency values for control and treatment groups were 361.32, 391.20, 392.45 and 334.91 g; 5.21, 4.86, 4.72 and 5.31, respectively. The ffects of salinomycin levels on fattening performance characteristins of Karakas male lambs were not statistically significant. Supplemental salinomycin decreased (P<0.05) the serum gylcose level in lambs fed diet containing 80 mg salinomycin / kg concentrate. However, 60 and 80 mg supplemental salinomycin increased (P<0.05) serum urea level compared to the control group fed diet without supplemental salinomycin. In conclution, differences among groups in terms of fattening performance characteristics were not found statistically significant, but 40 and 60 mg/kg salinomycin supplementation to diet of Karakas male lambs resulted in numerically improvement in feed conversion efficiency and daily weight gain values.
  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.
  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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