AI Summary & Key Takeaways
AI InsightWe concluded that further investigations are needed in DGAT1-AluI polymorphism and live weight at different agesin sheep.
📌 3 Key Takeaways
Abstract
Early live weight in sheep is important for lamb survival and average weight gain until slaughter. The aim of the present study was to investigateassociation between CAST-MspI, DGAT1-AluI and IGF-1-Bsp143II polymorphisms and early live weights between birth and weaning age inAkkaraman lambs. A total of 374 lambs were genotyped for CAST-MspI, DGAT1-AluI and IGF-1-Bsp143II polymorphisms by the polymerasechain reaction and restriction length polymorphism (PCR-RFLP) method. The results of PCR-RFLP analysis showed that the SNPs had threegenotypes of CAST-MspI polymorphism, two genotypes of DGAT1-AluI polymorphism and one genotype of IGF-1-Bsp143II polymorphism ofthese, CAST-MspI-MM, DGAT1-AluI-CC and IGF-1-Bsp143II-BB were the predominant genotypes in the Akkaraman sheep breed. The result ofChi-square analysis indicated that the Akkaraman sheep breed was in Hardy-Weinberg equilibrium for the investigated polymorphic genes.At the DGAT1 locus, the CT genotype showed significantly heavier birth weight (P=0.044) compared to CC genotype. CAST gene did not showany association for the investigated traits. The results of this study demonstrate that the CT genotype had a positive effect on birth weightin Akkaraman sheep. We concluded that further investigations are needed in DGAT1-AluI polymorphism and live weight at different agesin sheep.
Özet
Bu çalışmada, Akkaraman ırkı kuzularda, CAST-MspI, DGAT1-AluI ve IGF-1-Bsp143II polimorfizmleri ile bu polimorfizmler ve bazı canlı ağırlıklar arasındaki ilişkilerin araştırılması amaçlanmıştır. PCR-RFLP yöntemi ile toplam 374 kuzu CAST-MspI, DGAT1-AluI ve IGF-1-Bsp143II polimorfizmleri yönünden genotiplendirilmiştir. Akkaraman ırkı koyunların, CAST-MspI ve DGAT1-AluI polimorfizmleri yönünden polimorfik iken IGF-1-Bsp143II polimorfizmi yönünden monomorfik oldukları görülmüştür. Akkaraman ırkı koyunlarda CAST-MspI-MM, DGAT1-AluI-CC ve IGF-1-Bsp143II-BB genotiplerinin en yaygın genotipler olduğu görülmüştür. Ki-kare test sonuçlarına göre Akkaraman ırkı koyunların CASTMspI ve DGAT1-AluI polimofizmleri yönünden Hardy-Weinberg (HW) dengesinde oldukları görülmüştür. DGAT1 lokusu yönünden TC genotipli kuzular, diğer genotiplilerle karşılaştırıldığında bu genotipteki kuzuların daha yüksek doğum ağırlığına (P