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Articles by Nurcan Degirmencioglu
Total Records ( 3 ) for Nurcan Degirmencioglu
  Huseyin Eseceli , Nurcan Degirmencioglu and Murat Bilgic
  In this trial, the effect of Chromium yeast and folic acid on the egg yolk cholesterol, folic acid and chromium levels with performance and some egg criteria is evaluated. One hundred and eighty Lohmann White line 40 weeks of age layers were separated into 4 groups having 15 layers and trial replicated 3 times. The trial took place for 56 days. The 4 groups were fed basal diet with control group, chromium yeast (150 mg ton-1) group, folic acid (10 mg ton-1) group and folic acid + chromium yeast (10 + 150 mg ton-1) group. The inner and outer quality levels and cholesterol levels of eggs were determined. The feed consumption was decreased in chromium yeast added and folic acid + chromium yeast groups by 1.90 and 1.92% and feed conversion rate was increased by 3.5 and 4.35%. The folic acid group and the control group had the same feed consumption and feed conversion rate. Live weight, egg production, egg weight, shape index, eggshell thickness and Haugh units were not changed in the chromium and folic acid groups but egg white and yolk index was higher in the chromium and folic acid groups than the control group. In comparison to the control and folic acid groups, the egg yolk cholesterol levels of the chromium added groups was decreased in samples taken on the 4th and 8th weeks of the trial (p<0.001). Egg yolk folic acid levels in the folic acid suplemented groups. There is no difference on yolk chromium levels among the treatments. As a result, the decrease in feed consumption, increase in the feed conversion and decrease in egg yolk cholesterol by means of inclusion of chromium yeast to layer feeds could be useful in practical feeding strategies.
  Huseyin Eseceli , Ergun Demir , Nurcan Degirmencioglu and Murat Bilgic
  This study has been conducted to evaluate the use of Bio-Mos®, mannan oligosaccharide derived from the cell wall of yeast, as a potential replacement of growth promoting antibiotics in the diet of broilers. Effects of an antibiotic growth promoter (Avilamycin) and mannan oligosaccharide (Bio-Mos®) on performance have been examined in 320 days-old Ross 308 broiler chicks. These chicks were randomly grouped into two treatments with eight replicates of 20 chicks each. Commercial corn-soybean based broiler starter, grower and finisher diets were formulated as basal diets. Basal diets were supplemented with an antibiotic growth promoter (0.1% Avilamycin) and a mannan oligosaccharide (starter 0.15%, grower 0.1%, finisher 0.05% Bio-Mos®). Live weight, weight gain and feed intake, feed conversion ratio were not affected significantly by dietary treatments throughout the experiment (p>0.05). Mortality rate, hot carcass yield and feed cost for kg live weight gain did not show any significant differences among the groups (p>0.05). Mannan oligosaccharide (Bio-Mos®) has the potential to be an alternative to antibiotic growth promoters in broiler diets.
  Nurcan Degirmencioglu , Ozlem Kizilirmak Esmer , Reyhan Irkin and Ali Degirmencioglu
  In this study, the effects three different headspace conditions on the properties of canned minced beef meat were investigated by measuring pH changes at intervals of 1, 4 and 7 days. The three types of headspace conditions were a headspace of atmospheric air, Vacuum Packaging (VP) and Modified-Atmosphere Packaging (MAP), i.e., 70% O2 and 30% CO2 (MAP1) and 10% O2, 30% CO2 and 60% N2 (MAP2). The properties assessed at each of the four different conditions were color properties, oxidation stability and microbiological properties of minced beef meat stored at 4°C. Compared with air packaged samples, the most effective packaging methods were vacuum packaging for inhibiting TV and psychrotrophs counts. Among the three different head space consitions, the best preservation of minced beef meat occurred when MAP1 was used whereas vacuum packaging maintained acceptable color and oxidation stability, except for the air packaged samples.
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