Problems of modern genealogical structures on example of maternal composition in Oryol trotting horses from Moscow, Khrenovsky, Chesmensky and Altai studs
The problems of preserving genetic diversity of stud breeds in horses that have limited gene pool have been studied. Presented work deals with genealogical structure in view of main structural units in dreed lines and families. The authors propose that no proportional rearing of animals in pedigree nucleus of low-numbered breed causes narrowing its genealogy, the rise in total inbreeding level and the entire degradation.