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  • Küçük Resim
    Öğe
    Denizli X leghorn F2 popülasyonunda canlı ağırlık ve yumurta verimini etkileyen kromozom bölgelerinin tanımlanması
    (2013) Bulut, Zafer; Kurar, Ercan; Özsensoy, Yusuf; Nizamlıoğlu, Mehmet; Garip, Mustafa; Yılmaz, Alper; Çağlayan, Tamer; Dere, Suleyman; Kurtoglu, Varol; Dogan, Muge
    Amaç: Bu çalışmanın amacı; Denizli X Leghorn F2 populasyonunda yumurta verimi ve farklı dönemlerde canlı agırlığı kontrol eden kromozom bölgelerinin tanımlanmasıdır. Gereç ve Yöntem: Denizli ve Leghorn ırkları kullanılarak F2 düzeyinde deneysel bir populasyon oluşturuldu ve verim kayıtları alındı. Kromozom tarama çalışmaları için kantitatif özellik lokusları (QTL) gen haritalama analizlerine uygun 113 mikrosatellit markörü F0, F1 ve F2 bireylerde Polimeraz Zincir Reaksiyonu (PZR) ile yükseltgendi. Bulgular: Bu çalışmanın sonucunda farklı dönemlerde canlı ağırlık ile ilişkili QTL bölgeleri tavuk 1. kromozom çiftinde (GGA1), GGA2 ve GGA4 üzerinde tespit edildi. Yumurta verimi üzerine etkili iki farklı QTL bölgesinin varlığı, GGA8 ve cinsiyet kromozomu (GGAZ) üzerinde bulundu. GGA2, GGA4 ve GGAZ üzerinde bulunan üç farklı QTL ile yumurta ağırlığı arasında bir ilişki tespit edildi. Öneri: QTL bölgelerinin yeni markörler ile daraltılması ve bölgesel klonlama çalışmaları ile bu verim özelliklerini kontrol eden genlerin tespit edilmesi gerekmektedir.
  • Küçük Resim
    Öğe
    The Effects of Various Levels of Boron Supplementation on the Performance and Some Plasma Mineral and Metabolites of Wethers
    (MEDWELL ONLINE, 2012) Kurtoglu, Varol; Kurtoglu, Firuze; Polat, Esat Sami; Gurbuz, Emel
    In this study, the effects of various levels (0, 15, 30, 45 ppm) of Boron (B) supplementation to the wethers diet on performance parameters such as body weight, body weight gain, feed consumption, feed convertion ratio and serum Ca, P, Mg, glucose, ALP, triglyceride, total cholesterol, blood urea nitrogen, albumin and total protein levels were investigated. As animal material, a total of 32 merino male wethers 8 months age were used. These animals were divided 4 groups consisting 8 animals in each. Animals were housed and fed in individual cage. Before the experiment all animals were weighed and were grouped in equal body weight mean. This trial was made in University of Selcuk, Veterinary Faculty Experimental Farm and was lasted at 56 days. As a boron source, sodium borate was added to the diets. Boron was not supplemented to the diets of control while trial groups (group 2-4) included 15, 30 and 45 ppm B, respectively. Body weight datas were obtained on 14, 28, 42 and 56 days. Ca, Mg, P, glucose, ALP, triglyceride, total cholesterol, blood urea nitrogen, albumin and total protein were determined by spectrophotometer in blood samples obtained by vena jugularis on the 1, 28 and 56 days of the trial. Boron supplementation were increased on body weight gain and feed convertion ratio on some periods (p < 0.05). Boron additions also significantly affected the serum Ca, Mg and ALP values. In conclusion, boron might be have beneficial effects on performances and some blood parameters of wethers.
  • Küçük Resim Yok
    Öğe
    Effects of vitamin e supplementation on antioxidation and lipid profiles of rats on diets supplemented with cholesterol and olive oil
    (ASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOC, 2008) Kurtoglu, Firuze; Kurtoglu, Varol; Sivrikaya, Abdullah
    Lipid peroxidation (LPO) has been identified as an important component of atherosclerosis. In this study, the effects of supplementation with cholesterol (0.5%), olive oil (5%) and vitamin E (0.05%) on erythrocyte glutathione (GSH), plasma malondialdehyde (MDA), total cholesterol, HDL-LDL cholesterol and triacylglycerol, brain and liver MDA and GSH concentrations of rats were investigated. A total of 50 Sprague-Dawley male rats aged 6 months, and of equal body weight were used and fed a standard ration ad libitum. Animals were housed in the University of Selcuk, Veterinary Faculty Experimental Animals Unit. The experiment lasted 60 days and there were five experimental groups as follows: 1. Control, 2. Cholesterol (0.5%), 3. Olive oil (5%), 4. Cholesterol plus vitamin E (0.05%), 5. Olive oil plus vitamin E (0.05%). At the end of the experiment, blood samples were taken by cardiac puncture and erythrocyte GSH, plasma MDA, cholesterol, HDL-LDL cholesterol, triacylglycerol and also GSH and MDA concentrations in brain and liver tissue of rats were spectrophotometrically determined. Supplementation of olive oil and cholesterol into rat diets (groups 2 and 3) caused significant differences in lipid parameters; HDL cholesterol concentrations were increased in the olive oil group and LDL cholesterol was lower than in the cholesterol fed group. Moreover, these decreases in LDL and triacylglycerol concentrations were more significant with vitamin E supplementation. The high plasma MDA concentrations showed that lipid peroxidation occurred in the olive oil group and the highest brain MDA concentrations were determined also in the olive oil group. These findings suggest that vitamin E addition may decrease the sensitivities of several oils to oxidation and that monounsaturated fatty acids in olive oil may decrease the incidence of atherosclerosis by regulating blood lipid profiles.
  • Küçük Resim Yok
    Öğe
    Use of yeast cell walls and Yucca schidigera extract in layer hens' diets
    (PAGEPRESS PUBL, 2011) Gurbuz, Emel; Balevi, Tahir; Kurtoglu, Varol; Oznurlu, Yasemin
    This research was conducted to determine the impact of diet supplementation with yeast cell walls (YCW) and Yucca schidigera extract (YE) on performance, egg weight, specific gravity, body weight, and intestinal tissue histology in layer hens. White, 48-week-old, Hyline hybrid hens (n= 320) were divided into four main groups, each comprising eight groups of 10 hens: (1) control, (2) 500 mg/kg YCW added, (3) 500 mg/kg YE added and (4) 250 mg/kg YE plus 2500 mg/kg YCW added. While the egg production and feed intake of the hens was significantly affected, overall feed efficiency, damaged-egg ratio, dirty-egg ratio, egg weight and specific gravity did not differ between the control group and the YCW, YE or YCW+YE groups. Final body weight was higher in the YCW, YE and YCW+YE groups than in the control group. There were differences in the width, muscle layer thickness and height/crypt depth ratio of the duodenal villus and the width of the ileal villus among the four groups. It can be concluded that YCW and YCW+YE supplementation for layer hens are beneficial for egg production.