Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2017/r/gumushane/15091
  Association of IGF and IGFBP2 gene polymorphisms with growth and egg traits in Atak-S laying hens

  Das, Huseyin; Tarim, B.; Demir, S.; Küçükkent, N.; Cengiz, S.; Tülek, E.; Aksakal, V.

  Atak-S laying hens are a high-performance hybrid obtained by crossing of the Rhode Island Red (RIR) X the Barred Plymouth Rock (BR) and are being produced in the Ankara Poultry Research Institute since 1997. Phenotypic and genetic improving studies are continuous for this hybrid. In this study three different SNPs, two from IGF1 and one from IGFBP2 genes, were examined in 150 Atak-S chickens. Genetic association of SNPs were compared to body weight and egg number till 32 weeks of age, body weight at sexual maturity, age at sexual maturity and also egg quality traits such as egg shell breaking strength, shell thickness, Haugh unit, albumen index, yolk index and shape index were statistically analyzed. Only IGF1(a) locus was in agreement with Hardy-Weinberg equilibrium, while, the rest of the loci were not. As a result of the comparisons performed to the three SNPs, it was determined that there was a significant association (P < 0.05) between the T364C haplotypes of the IGF1(b) locus and body weight at 32 weeks of age, but there was not any association to the other traits.

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  İncele
• MakaleYalnız künye2015/r/gumushane/15501
  Genetic characterization of the Akkaraman, Morkaraman and Karayaka sheep through microsatellite variation

  Das, Huseyin; Turan, Ibrahim; Demir, Selim

  Genotypes have to be controlled periodically and necessary precautions should be taken in order to ensure that animal biodiversity is not lost. In this study, the genotypes of the Akkaraman, Karayaka and Morkaraman species from among Turkey’s local sheep were examined at 7 different microsatellite loci. The average allele counts are close to each other and were determined as 8,905±0,483. Whereas the PIC values ranged from between 0,507-0,794 at an average of 0,705. The He and Ho values used to calculate genetic diversity were determined on average as 0,734±0,023 and 0,509±0,038 respectively. According to the Fisher-Exact test result, the populations are not in HWE (P<0.001). Whereas the FIS values that show inter- population genetic diversity were determined as 0,353±0,092 (KRY), 0,328±0,095 (MRK) and 0,237±0,059 (AKK) respectively. In addition, Population Assignment and Principal Coordinate Analysis graphs were formed. When the pairwise FST and Nm, NeiuD,SHUA and G Statistics values used to calculate the genetic similarities and differences are examined, it is observed that the closest relations in terms of genetics is among AKK-KRY followed respectively by AKK-MRK and KRY-MRK.

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  İncele
• MakaleYalnız künye2014/r/gumushane/15748
  The effect of different photoperiods and stocking densities on fattening performance, Carcass and some stress parameters in broilers

  Das, H.; Lacin, E.

  This study was carried out for the purpose of investigating the effects of different photoperiods and stocking densities on physiologic parameters such as body weight, feed consumption, feed efficiency, carcass traits and some stress parameters in broiler chickens. Throughout the experiment, 480 day-old male chickens obtained from a commercial hatchery were used. The chicks were placed in different partitions which had three different photoperiod (continuous lighting: 24 hour light, constant lighting: 16 hour light - 8 hour dark, intermittent lighting: 4 hour light – 2 hour dark) were applied. Each photoperiod group was formed with five replicates at two different stocking densities (normal stocking density: 12 broiler/m2, high stocking density: 20 broiler/m2). The experiment was carried for 42 days. At the end of the experiment, the effect of photoperiod and stocking density on live weight gain were significant (P<0.05) while photoperiod significantly affected the feed consumption only (P<0.05). The feed efficiency were insignificant (P>0.05) with respect to both factors. The photoperiod programs had significant effects on the relative weight of gizzard, blood, feather percentage values (P<0.05) and breast percentage values (P<0.01). The stocking density has a significant effect on relative heart weight (P<0.05) and entire thigh values (P<0.01). At the end of the experiment, it was ascertained that the photoperiod program and stocking density had no significant (P>0.05) difference on tonic immobility and tibial dyschondroplasia values. However, stocking density had a highly significant effect (P<0.01) on gait score values and on heterophil-lymphocyte rate values (P<0.01).

  İncele
• MakaleYalnız künye2013/r/gumushane/19196
  The effects of different breeding methods on fattening performance and parameters related to slaughter, carcass and some meat quality in broiler chickens

  Das, Huseyin; Aksu, Muhammet İrfan; Sabuncuoğlu, Nilüfer; Lacin, Ekrem; Coban, Omer

  Bu araştırma altlıklı yer sistemi (FBG) ve kafeste (CBG) yapılan etlik piliç yetiştiriciliğinin besi performansı, kesim, karkas ve bazı karkas kalite parametrelerinin karşılaştırılması amacıyla yürütülmüştür. Hayvan materyali olarak 90 adet bir günlük Ross-308 erkek broyler civciv kullanılmıştır. FBG ve CBG gruplarında canlı ağırlık ve kümülatif canlı ağırlık değerleri arasındaki farklılığın istatistiksel olarak çok önemli (P<0.01) olduğu saptanmıştır. Deneme sonu canlı ağırlık değerleri ile ortalama canlı ağırlık artışları FBG ve CBG gruplarında sarasıyla 2530 ve 2046 g ile 2389.16 ve 1904.77 g olarak tespit edilmiştir. Deneme sonu kümülatif yemden yararlanma değerleri FBG ve CBG gruplarında sırayla 1.82 ve 1.88 olarak bulunmuş ve aralarındaki farklılığın istatistiksel olarak önemsiz (P>0.05) olduğu tespit edilmiştir. FBG ve CBG gruplarında sıcak ve soğuk karkas randımanı ile boyun, kanat, but ve kuyruk oranlarına ait değerler arasında istatistiksel olarak farklılığın olmadığı (P>0.05), göğüs oranına ait değerler bakımından ise önemli (P<0.05) farklılıkların olduğu belirlenmiştir. Göğüs etinden elde edilen L*, b* ve C* değerlerinin ve but etinden elde edilen L*, a*, b* ve C* değerleri bakımından deneme grupları arasında önemli farklılıkların olduğu (P<0.05, P<0.01) tespit edilmiştir.

  İncele
• MakaleYalnız künye2013/r/gumushane/19126
  Farklı Yerleşim Sıklığı ve Aydınlatma Programlarının Broyler Etlerinde Renk, pH ve TBARS Değerleri Üzerine Etkisi

  Aksu, Muhammet İrfan; Das, Huseyin; Sabuncuoğlu, Nilüfer; Lacin, Ekrem; Coban, Omer

  Farklı aydınlatma programı ve yerleşim yoğunluğunun broyler etlerinde renk, pH ve TBARS parametreleri üzerine etkilerini belirlemek amacıyla yürütülen denemede, 320 adet bir günlük erkek civciv (Ross 308) kullanılmıştır. Civcivler, iki aydınlatma programının [Sabit Aydınlatma (SB): 16 saat aydınlık, 8 saat karanlık; Kesikli Aydınlatma (KS): 4 saat aydınlık, 2 saat karanlık] uygulandığı farklı odalara yerleştirilmiştir. Her bir aydınlatma grubu iki ayrı yerleşim yoğunluğunda [Normal Yerleşim Yoğunluğu (NY): 12 broyler/m2, Yüksek Yerleşim Yoğunluğu (YY): 20 broyler/m2] beşer tekrar olacak şekilde deneme düzeni oluşturulmuştur. Deneme 42. günde sonlandırılmıştır. Piliç göğüs eti pH'sı üzerine yerleşim sıklığının etkisi önemli (P0.05). But eti a* renk kriteri bakımından ise aydınlatma programlarının etkisinin önemli (P

  İncele
• MakaleYalnız künye2013/r/gumushane/13152
  The effects of different breeding methods on fattening performance and parameters related to slaughter, carcass and some meat quality in broiler chickens; [Farklı yetiştirme metotlarının etlik piliçlerde besi performansı, kesim ve karkas özellikleri i̇le bazı et kalite parametreleri üzerine etkisi]

  Lacin, Ekrem; Coban, Omer; Aksu, Muhammet Irfan; Sabuncuoglu, Nilufer; Das, Huseyin

  The present study was aimed at the comparison of floor-based growth (FBG) and caged-based growth (CBG) systems in broiler production for growth performance and parameters related to slaughter, carcass and meat quality. Ninety one-day-old male Ross-308 chicks constituted the material of the study. It was determined that, in Groups FBG and CBG, the differences between body weight and cumulative body weight values were statistically very significant (P<0.01). The final body weights measured at the end of the trial and the mean body weight gain values in Groups FBG and CBG were determined as 2530 g - 2046 g and 2389.16 g - 1904.77 g, respectively. The end-trial final feed conversion rates of Groups FBG and CBG were determined as 1.82 and 1.88, respectively, and it was ascertained that the difference between the values of the two groups was statistically insignificant (P>0.05). While the hot and cold dressing percentages and the neck, wing, drumstick and tail percentages did not statistically differ between Groups FBG and CBG (P>0.05), values pertaining to breast meat displayed significant differences (P<0.05). It was determined that the L*, b* and C* values pertaining to breast meat and the L*, a*, b* and C* values pertaining to chicken drumsticks displayed statistically significant differences (P<0.05, P<0.01) between the trial groups.

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