Yazar "Arslan, Rabia" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Evaluation of genotype and nongenetic effects on some production traits: Comparison of Akkaraman and Bafra x Akkaraman B1 sheep genotypes
    (Scientific and Technological Research Council Turkey, 2022) Güngör, Ömer Faruk; Özbeyaz, Ceyhan; Ünal, Necmettin; Akyüz, Hilal Çapar; Arslan, Rabia; Akçapınar, Halil
    The purposes of this study were to evaluate genotype and some environmental effects on the reproductive and milk yield traits of sheep, and vitality and growth traits of lambs, and to compare the difference between Akkaraman (AKK) and Bafra x AKK B1 (BA B1: Bafra sires crossed BA F1 ewes) genotypes in terms of these characters. Data were collected from 71 ewes for fertility traits and 37 ewes for milk yields in each genotype. Growth traits and survival rates of lambs were evaluated using 55 AKK and 56 BA B1 lambs. AKK and BA B1 ewes had 87.32% and 92.96% for lambing rate (p > 0.05), 125.35% and 161.97% for lamb production (p = 0.005), 1.45 and 1.74 for litter size (p = 0.072), respectively. Lactation milk yields and lactation lengths of those were determined as 109.46 +/- 6.61 and 124.55 +/- 7.26 kg (p > 0.05), and 155.76 +/- 2.36 and 161.51 +/- 2.43 days (p > 0.05), respectively. The survival rates and body weights of their lambs at weaning (90th day) were 87.27% and 87.50% (p > 0.05), and 27.77 +/- 0.59 and 21.97 +/- 0.59 kg (p = 0.000), respectively. In conclusion, the age of the dam affected the reproductive and milk yield traits, birth type affected the growth, and sex affected the survival rate and growth traits. Regarding the genotype effect, the BA B1 genotype had better reproductive and lactation milk yield, lower growth performance than those of the AKK genotype, and a similar survival rate to the AKK genotype.
  • Küçük Resim
    Öğe
    Evaluation of the genotype and slaughter weight effect on the meat production traits: Comparison of fattening, slaughter, and carcass characteristics between two native sheep
    (Elsevier, 2022) Güngör, Ömer Faruk; Özbeyaz, Ceyhan; Ünal, Necmettin; Akyüz, Hilal Çapar; Arslan, Rabia; Akçapınar, Halil
    The aim of this study was to evaluate the effect of genotype [purebred Akkaraman (AKK), BA B1 crossbred BafraxF1 (BafraxAKK)] and slaughter weight (SW) (35, 40, and 45 kg) on fattening, slaughter, and carcass characteristics. A total of 46 lambs were used in this study. Feed conversation ratios were affected by genotype (P < 0.001) and SW (P = 0.015). Hot (P = 0.003) and chilled (P = 0.021) dressing percentages based on empty body weight were affected by genotype. Genotype and SW affected the percentage of the head (P < 0.001 and P < 0.001), feet (P = 0.012 and P = 0.014), lungs (P = 0.022 and P = 0.043), testicles (P < 0.001 and P = 0.002), omental fat (P < 0.001 and P = 0.012), mesenteric fat (P < 0.001 and P < 0.001), and the length of the carcass (P = 0.006 and P < 0.001) and the back (P < 0.001 and P = 0.010). In addition, leg circumference (P = 0.008 and P < 0.001), the compactness indices of the carcass (P = 0.024 and P < 0.001) and the leg (P = 0.030 and P < 0.001), and the bone ratio of the back (P < 0.001 and P = 0.019) and the loin (P = 0.027 and P < 0.001) were significantly affected by genotype and SW groups. In conclusion, genotype and SW affected some fattening, slaughter, and carcass traits, and it drew attention that the effect of SW on carcass measures and the effect of genotype on the ratios of individual cuts were usually significant.