A survey was conducted on three family farms who rear Buša as indigenous and protected breed of domestic animals in the area of Bjelovar-Bilogora County. Systematization of the breeding and recommendations for planned breeding and mating have been carried outat these herds. The information on the lineage of bulls and cows currently used in these herds have beensumarisedby analysing the data on the ancestry of bulls and cows. As a part of regular tasks, the employees of the Croatian Agricultural Agency (CAA) carry out the identification of the new-born calves and their registration in the Central registry of domestic animals. At this step, next to the name of the calf is allocated designation of the lineage from the bull and the dam. Simultaneously, a recommendation is given to the breeder whether to keep the calf or to offer it for sale to other breeders. After a detailed analysis, the recommendations are made for further breeding, i.e. the proposal of purchasing a new bull for breeding that match the herd. On the basis of the obtained data it was concluded that the breeders and CAA promptly and properly conduct activities and tasks related to breeding and perform correct systematization of breeding which reduces the impact of inbreeding and its negative effects. The study of the data in the annual reports of the CAA from 2003. to 2014. gave an overview on status of the Buša population at the establishment of the central Buša registry. Analysis by the year shows continued growth of the number of breeders and the number of breeding animals. It also gives an overview of measures that have been actively implemented in order to preserve Buša and shows the effect of these measures for each studied year. The role of the Gene Bank for the preservation of indigenous breeds of farm animals is described. The procedures of taking biological samples are sown for the storage of tissues in the Gene Bank, together with current results of sampling and storage of these samples.