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Articles by Ferhan Kaygisiz
Total Records ( 3 ) for Ferhan Kaygisiz
  Tanay Bilal , Ferhan Kaygisiz , Huseyin Eseceli and Aysen Altiner
  The aim of this study was to examine the effect of vitamin D3 and/or zeolite supplementation in presence of phytase enzyme on performance and enterprise income in laying hens. A total of 120, 28-weeks-old laying hens were used for the study. The laying hens were separated to 4 equal groups (5 replicates). The treatment groups were as follows: control diet (300 FTU phytase per kg), trial 1 diet (300 FTU phytase + 400 IU vitamin D3), trial 2 diet (300 FTU phytase + 400 IU vitamin D3 + 2% zeolite) and trial 3 diet (300 FTU phytase + 2% zeolite). The experimental period was 16 week. Body weight and feed conversion ratio were not statistically different between groups. Egg production was significantly lower in the phytase and vitamin D3 added group than in the phytase added group on days 29-56. Feed intake was lower in the phytase added group than in the phytase and zeolite added group on days 85-112 (p<0.05). On days 1 and 112, egg weight was significantly lower in the phytase added group than in the other groups. The control group had higher income than the other groups.
  Hasret Yardibi , Gulhan Turkay Hosturk , Ipek Paya , Ferhan Kaygisiz , Gurhan Ciftioglu , Ahmet Mengi and Kemal Oztabak
  The current study was undertaken to determine the relationship between milk production traits of Eastern Anatolian Red (EAR) and South Anatolian Red (SAR) breed cows and polymorphisms of Growth Hormone gene (GH) which is a potentially effective Quantitative Trait Loci (QTL) on milk production traits. Fifty cows that were newly delivered calves from each of EAR and SAR breeds were used. Triplicate milk samples were obtained between 0-30, 50-180 and 270-300 days of lactation period. Milk samples were analyzed for milk fat, protein, dry substance, refraction indices and somatic cell count. In addition, DNA samples were obtained from blood samples of each cow and AluI and MspI polymorphisms in GH were determined using PCR-RFLP method. In both breeds, AluI polymorphism with VV genotype cows had higher milk fat percentage compared to other genotypes. Similarly, in SAR cows, those with MspI polymorphism and -/- genotype had higher milk fat percentage compared to other genotypes. The relationship between GH gene polymorphisms and other milk quality parameters could not be established. As a result, it can be concluded that GH gene polymorphisms can be of a valuable parameter to be used for selection of EAR and SAR cows for improving milk fat percentage.
  Ferhan Kaygisiz and Yusuf Ziya Ograk
  The objective of the present study was to assess the cost of production,the proportion of the cost components in the total cost and profitability of puppy production enterprises producing Kangal race dog in Sivas province of Turkey. The proportion of labour costs, depreciation of livestock, depreciation of building and mechines and feed costs in the total costs accounted for 46.7, 10.9, 10.7 and 8.9%, respectively. Benefit-Cost Ratio was found to be 1.37.
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