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    A study on the Determination of Some Reproductive Traits of Ewes and The Growth Performance of Lambs Akkaraman Raised under Farm Conditions in the Province of Niğde
    (2023) Aksoy, Yüksel; Şekeroğl, Ahmet; Duman, Mustafa; Çoban, Önder Bayram
    In this study, the reproductive and growth performance of Akkaraman sheep between 2017-2021 were evaluated within the scope of the National Sheep and Goat Breeding Project in the Hand of the Public, which is being carried out in the province of Nigde. In the research, data obtained from 30923 animals in 22 farms in 7 villages in the central district of Nigde province were used. In the study, the effect of year, dam’s age, gender and birth type on birth weight (BW), live weight on day 60 (LW1), live weight on day 120 (LW2), daily live weight gain (DLWG) on day 120 were investigated. The effects of year, dam’s age, gender and birth type on BW, LW1, LW2, DLWG were found to be statistically significant. While the effects of year, dam’s age and gender were found to be statistically effective on SR, the effect of birth type was found to be insignificant. In the study, fertility, fecundity and litter size in Akkaraman lambs were determined as 0.92, 1.03 and 1.13, respectively. As a result, remarkable progress has been achieved in Akkaraman lambs in terms of performance characteristics (LW1, LW2 and DLWG) between 2017 and 2021.
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    Evaluation of Some Reproductive Performance of Ewes, Livability and Growth Traits of Lambs of Akkaraman in Breeder Flocks in Niğde/Bor Province
    (2023) Aksoy, Yüksel; Şekeroğlu, Ahmet; Duman, Mustafa
    Conducted within the National Sheep and Goat Breeding “subproject: Akkaraman Sheep Breeding Project under farmer conditions in Nigde’s Bor district” between 2018 and 2022, the current study evaluated the reproductive characteristics of ewes as well as the livability and growth traits of lambs. This study investigated some ‘reproductive traits’ of an average of 6000 ewes per year and ‘growth performance and ‘survival traits’ of a total of 30051 head lambs. The birth weight (LBW), 60th-day body weight (BW60), 120th-day body weight (BW120), and 120th-day body weight gain (BWG120) of Akkaraman lambs during the study periods were 4.14±0.19 kg, 18.58±0.03 kg, 31.31±0.02 kg, and 246±2.23 g/lamb/day, respectively. In the study, among the factors affecting the growth characteristics of Akkaraman lambs, only the effect of gender on BWG120 and birth type on BW120 was found to be insignificant. In contrast, the other factors were found to be found to be statistically significant. In the study, it was determined that the number of lambs per Akkaraman ewe giving birth between 2018-2022 varied between 1.03-1.10. The highest livability in Akkaraman lambs was determined in 2018 (96.61%) and the lowest in 2020 (83.21%). As a result, it was found that liveability in Akkaraman lambs was dependent on birth year, the age of the ewe, gender, and birth type.
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    Türkiye'de yetiştirilen bazı yerli koyun ırklarında kalpastatin (CAST) geni polimorfzminin PCR-RFLP yöntemiyle belirlenmesi
    (2014) Balcıoğlu, Murat Soner; Karslı, Taki; Şahin, Emine; Ulutaş, Zafer; Aksoy, Yüksel
    Bu çalışmada, Türkiyede yetiştirilen 7 yerli koyun ırkında kalpastatin (CAST) gen polimorfzmi PCR-RFLP metodukullanılarak araştırılmıştır. CAST geninin M ve N allelleri frekansları; Kangal (n= 31), İvesi (n= 26), Güney Karaman(n= 23), Akkaraman (n= 21), Morkaraman (n= 34), Karayaka (n= 33) ve Karakaş (n= 22) koyun ırklarında sırasıyla 0.92-0.08, 0.59-0.41, 0.67-0.33, 0.69-0.31, 0.87-0.13, 0.86-0.14, 0.89-0.11 olarak tespit edilmiştir. Ki-kare testi CAST genibakımından Morkaraman, İvesi ve Karayaka populasyonlarının Hardy-Weinberg dengesinden önemli düzeyde (P<0.05)saptığını, diğer populasyonların ise Hardy-Weinberg dengesinde olduğunu göstermiştir.