Cilt:67 Sayı:04 (2020)

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Browsing Cilt:67 Sayı:04 (2020) by Subject "Crossbreeding"

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    Some production characteristics of Bafra, Akkaraman, Bafra × Akkaraman F1 and B1 sheep genotypes
    (Ankara Üniversitesi, 2020-09-01) Güngör, Ömer Faruk; Ünal, Necmettin; Veteriner Fakültesi
    The present study was carried out to identify the reproductive characteristics, survival rate, growth traits and some body measurements of Bafra (B), Akkaraman (A), Bafra × Akkaraman F1 (BAF1) and Bafra × Akkaraman B1 (BAB1) sheep genotypes. The research was performed at Gözlü State Farm, belonging to the General Directorate of Agricultural Enterprise (TİGEM), during the years of 2014-2016. In the study, lambing rates of B×B, A×A, B×A and B×BAF1 mating groups were 55.25, 69.97, 67.25 and 64.91%; the lamb production were 92.27, 88.93, 87.54 and 122.81% and the litter sizes were 1.67, 1.27, 1.30 and 1.89, respectively. The survival rates of B, A, BAF1 and BAB1 lambs were calculated as 89.89, 94.23, 88.79 and 98.36% in the 90th day, respectively (P<0.05). The least square means of these lambs were 3.65±0.05, 4.71±0.07, 4.56±0.06 and 4.03±0.10 kg (P<0.001) for birth weight and 23.51±0.30, 31.39±0.37, 30.00±0.35 and 25.16±0.53 kg (P<0.001) for the 90th day weight (weaning weight), respectively. Body measurements of these genotypes on the 90th day were 56.79±0.45, 61.75±0.54, 60.98±0.59 and 61.73±0.62 cm (P<0.001) for the withers height; 55.76±0.32, 55.18±0.39, 56.91±0.42 and 57.43±0.45 cm (P<0.01) for the body length; 63.05±0.73, 71.88±0.89, 60.89±0.96 and 61.92±1.02 cm (P<0.001) for the chest girth; and 16.63±0.50, 40.45±0.62, 28.33±0.67 and 18.33±0.70 cm (P<0.001) for the widest tail circumference, respectively. In conclusion, the reproductive performance of the BAF1 genotype was satisfactory; BAF1 lambs were partially similar to A lambs, but BAB1 lambs were partially similar to B lambs in terms of growth characteristics.