Variants of serum transferrin and red cell haemoglobin in two native sheep breeds (Awassi and Mor Karaman) and purebreed of Merinos and their several cross breed populations were studied by starch gel electrophoresis. The frequencies of transferrin and haemoglobin phenotypes and their alleles were researched. Although the phenotype of Hb-AA was very rare, all three haemoglobin types were clarified. Five transferrin alleles (Tf^A, Tf^B, Tf^M, Tf^D, Tf^E) were recognized in whole populations. Fourteen transferrin phenotypes consisting of four homozygotes and ten heterozygotes were recognized. Genotype and gene frequencies of each allele were demonstrated.