[Comparative study of protein polymorphism in the gray Ukrainian breed]. / Sravnitel'noe issledovanie belkovogo polimorfizma seroi ukrainskoi porody.

The electrophoresis of blood serum proteins in polyacrylamide gel has been used to analyze genetic variability of Grey Ukrainian and Hungarian Grey breeds of cattle. The differences in allelic frequency between the breeds and populations of Grey Ukrainian cattle are found. In cattle, post-transferrin-3, new polymorphic protein, controlled by two co-dominant alleles is detected.