Bu çalışma, Albumin (Al) ve Vitamin D Bağlayıcı Proten Sistemi (Gc) polimorfizmini incelemek amacıyla yeni doğmuş Arap atı tayları ile onların ebeveynlerinden alınan sırasıyla 1177 ve 1251 kan örneğinde üzerinde yürütüldü. Yapılan nişasta jel elektroferezinde önde ilerleyen homozigot band FF, arkada kalan homozigot band SS ve her ikisinin arasında kalan heterozigot band FS olarak isimlendirilmiştir. F alleli frekansı 0.565 ve S alleli frekansı 0.435 olarak tespit edilmiştir. Bu ailelere ait fenotiplerin görülme yüzdeleri, FF % 30.41, FS: % 52.09 ve SS: % 17.50 olarak belirlenmiştir. Gc sistemi de iki otozomal ko-dominant allel tarafından kontrol edilen 3 fenotip göstermiştir. Bu fenotiplerin görülme sıklıkları; FF: % 87.05, FS: % 11.75 ve SS: % 1.19 olarak belirlenmiştir. F ve S aleleri frekanslarının sırasıyla 0.930±0.005 ve 0.07±0.005 olarak tespit edilmiştir.

This study was carried out to investigate the polymorphisms of Albumin (Al) and Vitamin D Binding Protein (Gc) Systems in 1177 and 1251 blood samples collected from Arabian foals and their parents, respectively. The results of starch gel electrophoresis (SGE) indicated that in the Al systems, the first homozygote band was visualised as FF, the last homozygote band was SS. The band between the two homozygote bands was named as hétérozygote, FS. The allelic ferquencies were determined to be 0.565 for F and 0.435 for S. The phenotypic frequencies of these alleles were found as 30.41 % for FF, 52.09% for FS and 17.50% for SS. The polymorphism of the Gc system investigated in 1251 blood samples of Arabian horses demonstrated the existence of three phenotypes controlled by two autosomal, co-dominant alleles. The phenotypic frequencies were found to be 87.05% for FF, 11.75% for FS and 1.19 for SS. The allelic frequencies of F and S were determined as 0.930±0.005 and 0.07±0.005, respectively.