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Öğe The development of organic egg production in Turkey(2016) Balevi, Tahir; Coskun, Behic; Gurbuz, Emel. Amaç: Bu çalışmada, organik yumurta üretiminin nasıl yapılacağına dair, uygun coğrafi konum, kafes, tavuk ırkları ve işletme idaresi için çeşitli yaklaşımlar ve öneriler verilerek saha çalışması yapılmıştır.Gereç ve Yöntem: Organik yumurta tavukçuluğunun hangi şartlarda yapılması gerektiğine yönelik bilgi araştırması yapıldı. Aynı zamanda saha çalışması için ticari bir firmada mevcut olan kümeslerden birine 3000, diğerine 1500 olmak üzere toplam 4500 adet yumurta tavuğu pilici (ISA Brown) konularak, organik yumurta üretimi yapıldı. Bulgular: Tavukların verim dönemleri boyunca yumurta verimlerinin %59.92-77.21, günlük yem tüketimlerinin 120135 g/gün, yemden yararlanma oranlarının 2.85-3.27, yumurta ağırlıklarının ise 55.34-66.19 g arasında değiştiği tespit edildi. 78. hafta sonunda ise mortalite oranının %16.96 olduğu görüldü.Öneri: Hem organik yumurta tavukçuluğunun, hem de diğer organik üretimlerin en kısa zamanda ülke genelinde yayılmasına, geliştirilmesine önderlik edilmelidir.Öğe Effect of adding linseed and selenium to diets of layer hen's on performance, egg fatty acid composition and selenium content(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2012) Gurbuz, Emel; Balevi, Tahir; Coskun, Behic; Citil, Ozcan BarisIn a 4x3 factorial experiment, six hundred 31-week-old laying hens were fed diets containing 0, 25, 50 and 100 g/kg linseed with control, 0.3 mg/kg organic selenium (OrSe) and 0.3 mg/kg inorganic selenium (InSe) to determine the effects of diet on performance, eggshell parameters, egg fatty acid composition and selenium (Se) content of eggs. Laying hens were randomly assigned to 12 experimental groups with 5 replications. Linseed supplementation decreased egg production (d 1-30), feed consumption (d 1-30 and 1-90) and egg weight (d 60-90 and 1-90). Shell weight and thickness decreased when dietary linseed was increased. There were interactions between Se and linseed in feed consumption, feed efficiency, damaged egg ratio and shell thickness. The inclusion of InSe and OrSe increased the Se content of the eggs. Docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), alpha-linolenic acid (ALA) and n-3 fatty acid concentrations in egg yolks increased with increasing dietary linseed. There were also interactions between linseed and Se in ALA and n-3 fatty acid concentrations. In conclusion, the addition of linseed to the diets increased DHA, EPA, ALA and n-3 fatty acid concentrations in egg yolks, and the addition of Se increased the Se content of the eggs. Egg fatty acids (ALA, n-3 fatty acid) were increased by supplementing dietary linseed with OrSe.Öğe Effect of dried sugar beet pulp on some blood parameters and heart rate in exercised horses(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2011) Gurbuz, Emel; Coskun, BehicThis research has been carried out in order to study the effects of using dried sugar beet pulp (DSBP) instead of oats on the blood parameters and heart rate of horses during exercise. The research has been performed using the 4x4 Latin Square design. The trial was carried out over 100 days. Each of the 4 periods of 25 days consisted of 21 adaptation days and 4 sampling days. In the trial, 4 different kinds of concentrated feed, balanced for energy and protein, were given to the control group, a 12.5% DSBP added group, a 25% DSBP added group and a 37.5% DSBP added group. No difference was found in the heart rate and blood samples of the horses to which the exercise test was applied, with regard to levels of plasma lactic acid, glucose, cholesterol and triglyceride (P > 0.05).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, EmelIn 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.Öğe Use of yeast cell walls and Yucca schidigera extract in layer hens' diets(PAGEPRESS PUBL, 2011) Gurbuz, Emel; Balevi, Tahir; Kurtoglu, Varol; Oznurlu, YaseminThis 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.
