“…In order to preserve the remaining purebred animals urgent measures are needed, and apart from creating special systems of breeding, it is necessary to solve spatial limitations by moving the animals and, if necessary, to obtain some unrelated high-quality breeding animals from other breeders [2]. In addition, the recent researches [20,21] point at the usefulness of one complement study about effects of certain gene polymorphisms on the improvement of fat deposition and milk yield traits. Any possible following projects on crossbreeding, in order to increase beef and milk production, primarily require breeding of 'purebred' animals and the data collected in this study can undoubtedly contribute to this.…”