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  • Küçük Resim
    Öğe
    Kıl keçisi yetiştiriciliğinin organik üretim bakımından uygunluğu
    (2017) Keskin, Mahmut; Gül, Sabri; Biçer, Osman; Gündüz, Zuhal
    Tarımsal üretimin entansifleşmesi artan nüfusun beslenebilmesi için gerekçe olsa da son yıllarda toplumun bilinçlenmesine paralel olarak organik ya da ekolojik ürünlere talep artmaktadır. Yetiştirme sistemi nedeni ile bu yapıya uygun olan ya da birkaç düzenleme ile uygun hale gelebilecek olan Kıl keçi yetiştiriciliği Türkiye'nin büyük bir bölümünde yapılmaktadır. Bu çalışmada Kıl keçi yetiştiriciliği Organik Tarımın Esasları ve Uygulanmasına İlişkin Yönetmelik ile birlikte değerlendirilmiştir. Çalışma, melezleme tehdidi altında olan Kıl keçinin organik üretim kapsamında değerlendirilmesi ile sürdürülebilirliğinin sağlanması bakımından önemlidir.
  • Küçük Resim
    Öğe
    Maternal behaviour of Awassi sheep and behaviour of the lambs during the first hour after parturition
    (2017) Gül, Sabri; Görgülü, Özkan; Keskin, Mahmut; Gündüz, Zuhal
    Data from sixty-one 2–5-year-old Awassi ewes (38 single and 23 twin births) were evaluated in order to determine behaviour at parturition and the following first hour. Observations were subjected to Kolmogorov–Smirnov and Shapiro–Wilk tests, Pearson’s chi-square test, independent samples t-test, and ANOVA. The Awassi sheep exhibited sniffing action after parturition as the initial behaviour, choosing the back part of the lamb. First licking and sniffing times were found to decrease with maternal age; calculated average data for these characteristics were 138.3 ± 15.39 and 118.3 ± 26.48 s for singlets, and 147.7 ± 15.12 and 123.6 ± 29.54 s for twins, respectively (P < 0.05). Total mean licking time was found to be 27.9 ± 0.81 min in single births and 26.2 ± 0.90 min in twin births. The mean first successful standing-up time was determined to be 23.2 ± 1.83 min in single births, 21.1 ± 1.63 min in the firstborn twin, and 20.2 ± 2.96 min in the second-born twin (P < 0.05). In the same order, the average suckling time of lambs was specified as 34.3 ± 2.27 min, 34.3 ± 2.50 min, and 29.2 ± 3.70 min (P < 0.05), respectively. In conclusion, Awassi ewes showed good maternal behaviour and encouraged their lambs in standing up and suckling.
  • Küçük Resim
    Öğe
    Microsatellite panels for parentage testing of Kilis goats reared in Turkey
    (TÜBİTAK, 2019) Keskin, Mahmut; Yılmaz, Onur; Gündüz, Zuhal; Ata, Nezih; Gül, Sabri; Cemal, İbrahim; Karaca, Orhan; Önel, Süleyman Ercüment
    The aim of this study was to develop PCR-based suitable microsatellite marker panels for paternity testing and to define pedigree errors in Kilis goats. A total of 137 head of goats were used, consisting of 118 head of kids and 19 head of possible candidate sires. A total of 392 alleles were observed in 22 microsatellite markers. Allele numbers ranged between 12 (SRCRSP7) and 24 (BM1818, INRA0023, and SRCRSP15) with an average of 17.82. The mean value of the effective allele numbers was obtained as 9.44. The overall polymorphic information content value was quite high (0.88). The overall observed (Ho) and expected heterozygosity (He) values for all studied loci were 0.89 and 0.89, respectively. Paternity test panels for the Kilis goat population studied were created based on individual probability of exclusion of microsatellites in multiplex groups. Combined probability of exclusion (CPE) values for different panels ranged between 0.745 (Panel-1) and 0.9999 (Panel-22), while the combined identification probability (CPI) values were obtained in the range of 9.81 × 10–3 (Panel-1) to 6.96 × 10–21 (Panel-22). As a result of this study, it can be stated that panels with 0.999 CPE values can be used at the most reasonable cost and with high reliability in paternity tests to be performed in Kilis goats, which can be a reference for other populations.