Features of the Tuva Yt breed dogs live-stock (Tuvan Shepherd Dog) of different breedings

The aim of the study is a comparative analysis of the Tuva Yt breed of dogs (Tuvan Shepherd Dog) from the Mongun-Taiga kennel (Moscow) and primitive breeding, kept in the Kyzyl, Kaa-Khem, Ulug-Khem Mongun-Taiginsky kozhuuns of the Republic of Tuva. Objectives: to conduct morphometric measurements of dogs from the Mongun-Taiga kennel and primitive breeding (head length, forehead length, muzzle length, oblique body length, chest width, chest girth, metacarpus girth, height at the sacrum, height at the withers); to compare the obtained results with each other and with the breed standard; to evaluate the constitution of dogs of different breeds. The material for the work was morphometric measurements of dogs of the Tuva Yt breed (Tuvan Shepherd Dog), obtained in 2018–2022. Data on dogs from the Mongun-Taiga kennel (Moscow) were provided by Ch. M. Dorzhu, candidate of biological sciences, asso-ciate professor of the Kyzyl State University. Work on taking measurements of dogs of primitive breeding was carried out on the territory of the Republic of Tyva (Kyzyl, Kaa-Khem, Ulug-Khem and Mongun-Taiginsky kozhuuns). The measurements were taken using standard methods and instruments. Each measurement was taken three times with an interval of one minute between measurements. The average value was considered the final result. Subsequently, the obtained characteristics were compared with each other and with the RKF breed standard of 13.03.2024. As a result, it was found that the height at the withers of the majority of measured dogs (79 %) was greater than that allowed by the current standard. Only 9 (21 %) dogs correspond to the modern standard for height at the withers: 2 (6.4 %) males and 7 (58.3 %) females. In most respects, the dogs of the Mongun-Taiga kennel are larger than dogs of aborigi-nal primitive breeding and are inferior only in chest width and forehead length. High variability in dogs of the Mongun-Taiga kennel is observed in the chest width indicator – the variation coefficient for females was 38.11 % for females, and 25.45 % for males. High variability in dogs of the Republic of Tuva is ob-served in the muzzle length indicator – the variation coefficient is 21.23 %.