Polymorphism of 14C vitamin D3 binding protein in cattle and water buffalo serum

Abstract
Cattle and water buffalo sera labeled with vitamin D3[14C] (300 and 480 individual samples, respectively) were subjected to starch gel electrophoresis followed by autoradiography to identify a possible polymorphism of the proteins capable of binding this vitamin. Three phenotypes controlled by 2 codominant autosomal alleles were identified in cattle. In water buffalo, 6 phenotypes controlled by 3 codominant autosomal alleles were observed.