Linear assessment of the exterior of cattle Obrak breed in the Northern Trans-Urals
The article presents data on the use of a linear method for assessing the exterior of Aubrak cows in the conditions of the Northern Trans-Urals. The compliance of specific articles of the exterior with the requirements for linear evaluation was determined by eye. The animals were evaluated for 13 traits. The cows of the estimated population are characterized by the following features. High height (+1.4 points here and further to the optimal rating), strong build (+1.3 points), well-developed chest (+1.3), long rump (+1.2 points), long back (1.5 points), optimal pelvic position, very good muscularity, slightly arched back. According to the results of the linear evaluation of Aubrak cows after a 10-year period of animal breeding, it can be concluded that the main features of the linear evaluation remained well developed, but the points for all the features of the linear evaluation increased. Obrak cows are characterized by a harmonious physique, beautiful elegant proportionally built animals, they are characterized by the severity of female characteristics. A small number of animals were found to have exterior defects. In the future, it is necessary to develop the optimal parameters of the linear assessment, taking into account the breed affiliation of the animals.