@article{Zaets_Stoliar_Mandryk_Bihas_1, title={Evaluation of the exterior of the first-calf Ukrainian Black-and-White dairy breed by the linear classification method depending on the origin of the father}, url={https://fri-journal.com/index.php/journal/article/view/129}, abstractNote={<p>In terms of the breeding farms of Vinnytsia region «Zelena Dolyna LLC» of&nbsp;«Vyly», village Vyly, Tomashpil district and «Radivske LLC», village Radivka,&nbsp;Kalynivka district, milk production and signs of the exterior of first-calf cows of the&nbsp;Ukrainian black-and-white dairy breed were evaluated, and the degree of consolidation&nbsp;and variability was established. Thus, according to the complex of traits of the exterior&nbsp;characterizing the dairy type, body, limbs and udder of the first-calf cow there was&nbsp;received 82.1 ± 0.18; 84.90 ± 0.14; 78.50 ± 0.13 and 84.0 ± 0.13 points. By the overall&nbsp;linear assessment of the exterior (Kc = 0.303–0.280) and milk productivity (Kc = 0.415–0.188), daughters of Otto bulls 00135556252 (Marshal Line 2290977.95) and Sarukko&nbsp;95813 (Mtoto Line) appeared to be the most consolidated.&nbsp;Analysis of the phenotypic variability of complex and descriptive traits of the type&nbsp;showed that the following traits of the exterior had high variability: posture of the pelvic&nbsp;extremities, hooves angle, posterior attachment of the udder, placement of the front and&nbsp;rear dugs (Сv = 15.1; 15.2; 12.9; 17.5; 18.9).&nbsp;A positive average correlation (r = 0.24–0.25) was established between the relative&nbsp;variability of signs of milk production and the overall assessment of the exterior. A&nbsp;negative correlation (r = -0.01) between a 305-day yield of lactation and fat content and a&nbsp;weak position correlation (r = 0.13) with protein content.</p&gt;}, number={86}, journal={Feeds and Feed Production}, author={Zaets, A. P. and Stoliar, J. W. and Mandryk, M. O. and Bihas, O. V.}, year={1}, month={1}, pages={161-167} }