Abstract. Interest in horse breeding in the Stavropol Territory is not accidental: it is a traditional and historically developed branch of animal husbandry. The priority link of the branch, of course, is pedigree horse breeding. Goal is the analysis of the of thoroughbred horse breed population in the Stavropol Territory on the example of the leading breeding farms. The object of the study were stallions (n = 16) and breeding mares (n = 86) thoroughbred horse breed, bred in breeding farms of the Stavropol Territory (Agricultural Production Enterprise “Svobodnyy trud” LLC, Agricultural Production Enterprise “Novomaryevskoye” LLC, Federal State Unitary Enterprise “Rassvet-Stavropol”). Information sources of research: pedigree horses, scoring, statements of results, catalogs of stallions State stud books of horses of thoroughbred riding breed, data from KONI-3 information retrieval system. Results and scope. Used in breeding farms of Stavropol territory stallions of thoroughbred horse breed are represented by 5 genealogical lines: Northern Dancer, Native Dancer, Nasrullah, Blandford and Man O’War. The number of stallions belonging to the old Phalaris line is 14 heads (87,5 %). One head each (6,25 %) falls on the representative of the Blandford line in Agricultural Production Enterprise “Novomaryevskoye” LLC and the Man O'War line at the Federal State Unitary Enterprise “Rassvet-Stavropol”. Evaluation of the mares in the nuclear stock thoroughbred riding breed showed that their genealogical structure is represented by 12 lines. It should be noted that 5 lines of Northern Dancer, Native Dancer, Nasrullah, Fairway and Turn-to go back to one ancestor, the line of Phalaris, which accounts for 82,6 % of the total number of breeding mares. The obtained results can be used in further research, the practical work of livestock breeding farmers and individuals engaged in breeding horses of thoroughbred riding breed. The results of the research can be recommended as educational material for students and undergraduates of universities studying in the areas of training zootechnical profile. The scientific novelty of the research lies in the fact that, for the first time, a comparative genealogical and zootechnical characteristization of stallions and mares of the nuclear of thoroughbred horse breed bred in the Stavropol Territory was carried out.
Genealogical lines of breeding mares as biological resources of a thoroughbred horse breed bred in the Stavropol Krai
