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Articles by V. Ayhan
Total Records ( 3 ) for V. Ayhan
  V. Ayhan , A. Tolunay and E. Adiyaman
  This study investigates the effect of different vegetation periods on the chemical composition of kermes oak. Five different vegetation periods from May through September 2008 were taken into consideration for this purpose. Throughout these periods, values for dry matter, crude protein, crude lipid, crude fiber, nitrogen-free extracts, crude ash and metabolizable energy were measured. The chemical composition of kermes oak underwent statistically significant changes in connection with the vegetation period (p < 0.05). During the May, June, July, August and September periods, the natural dry matter content of kermes oak was found to be 43.26, 53.83, 56.85, 57.35 and 57.95%, respectively. During the same periods, values for crude protein with respect to dry matter were 1.27, 1.20, 1.29, 1.47 and 1.59%, respectively, values for crude lipid were 4.37, 3.95, 3.47, 2.69 and 3.73%, respectively, values for crude fiber were 20.88, 30.91, 35.53, 37.21 and 37.08%, respectively, values for nitrogen free extracts were 69.48, 59.98, 55.45, 55.57 and 54.35%, respectively, values for crude ash were 3.99, 3.95, 4.22, 3.05 and 3.25% , respectively and values for metabolizable energy were 3191.65, 3149.65, 3129.35, 3119.92 and 3124.15 kcal kg-1, respectively. In conclusion, it was determined that the chemical composition of kermes oak underwent changes in connection with the vegetation period and that, in particular, as the vegetation period advanced, the crude fiber content increased and nitrogen-free extracts decreased.
  B. Kara , V. Ayhan , Z. Akman and E. Adiyaman
  This study was carried out to determine silage quality, herbage and hay yield of different triticale cultivars (Tacettinbey, Tatlicak-97 and Karma-2000). In the research, besides herbage and hay yield of triticale cultivars, dry matter, organic matter, crude protein, crude lipid, crude fiber, nitrogen-free extract and crude ash, silage pH, flieg point, metabolizable energy and physical quality of triticale silage were examined. Among the cultivars, while the highest herbage yield (22860 kg ha-1), hay yield (14270 kg ha-1), dry matter (43.4%), crude protein content (8.3%), crude lipid (2.91%), crude fiber (27.1%), flieg point (127.8) and the best pH value (4.1) were observed in Karma-2000 cultivar, physical characteristics such as smell, structure and color of the cultivars were similar among cultivars.
  M. Yilmaz , V. Ayhan and H.E. Bardakcioglu
  The aim of this study is to introduce the nomadic sheep breeding system, its importance in the econonical life and its effects on the crossover of the sheep genotype in the city by means of the observations and surveys carried out on the registered nomadic sheep breeders of isparta city breeding sheep-goat breeder’s association. They live in tents woven of goat hair. In this life style, two or three families who are close relatives with one another and who have 250-400 head sheep migrate altogether. The animals shelter temporarily in places called as bed which are surrounded with simple fences. Nomads from Isparta have tried to convert their sheep into a form with no tail bringing Sakiz and Kivircik croosbred or Kivircik rams from the cities of Aydin and Izmir. It has been observed that in their flocks which have different crossbred types and are not in a single structure, they prefer a sheep genotype which can give twin births which has high milk productivity which is completely white and which is close to Kivircik genotype. The folk of the region has named this genotype as Pirit. While the annual income obtained in nomadic flocks is 45075 TL (20684.85 EUR) total expenditure is 6150 TL (2822.54 EUR) thus, the net income is 38925 TL (17862.31 EUR). In an average family of four members monthly income per member is 810.9375 TL (371.75 EUR). The number of enterprises dealing with nomadic sheep breeding has been decreasing due to the prohibition of forest areas and the high levels of fiscal punishment applied. We claim that with regards to the development of the nomadic sheep breeding of the city of Isparta and the sustainabilty of it and for the purpose of generating the desired sheep type in the city, its spread and stud flow, an improvement model must be developed and applied on the nomadic sheep flocks which will speed up the change process of the sheep breeding in the region. For this reason, some legal arrangements must be made to determine the boundaries of the available pasture areas and for their utilization. A cooperative or a company should also be established for a better marketing and evaluation of the products in present production conditions.
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