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Information × Registration Number 0226U001747, (0124U001378) , R & D reports Title Improve and test the existing linear evaluation system for animals of dairy breeds to the type of exterior. popup.stage_title Успадковуваність та співвідносна мінливість статей екстер’єру корів молочних порід. Head Cherniak Nataliia H., Кандидат сільськогосподарських наук Registration Date 30-01-2026 Organization Institute of Animal Breeding and Genetics nd. a. M.V.Zubets of National Academy of Agrarian Science of Ukraine popup.description1 Improvement of the method of linear evaluation of cows of dairy breeds to the type of exterior and establishing the connection of individual linear and group features with other economically useful features. popup.description2 The research was conducted by: TOV “Terezyne” (n = 1181 heads), TOV “Ostriikivske” (n = 1385 heads), SE DG “Shevchenkivske” (n = 2197 heads), TOV “Dibrivka Agroservice” (n = 425 heads), SPOC “Vidrodzhennia” (n = 636 heads). Animal information databases were updated in the SUMS “Orsek” format (n = 14,514 heads). Selection and breeding work plans for Holstein herds at SPOC “Vidrodzhennia” and TOV “Ostriikivske” for 2024-2028 were developed and implemented. An information database on linear type assessment indicators of dairy breed cows was created in Excel (n = 620 heads). Individual bull-to-cow selection plans were developed (n = 5660 heads). A high level of correlation was established between milk yield and the group conformation traits of first-calf Holstein cows (TOV “Ostriikivske”, n = 210 heads), which characterize the expression of dairy type (r = 0.435), body development (r = 0.355), udder (r = 0.571), limbs (r = 0.274), and overall cow type score (r = 0.666). A positive correlation with milk yield was observed for a number of individual descriptive exterior traits: fore (r = 0.551) and rear udder attachment (r = 0.132), udder depth (r = 0.205), chest width (r = 0.298), body depth (r = 0.121), angularity (r = 0.394), and rump width (r = 0.285). A negative correlation with milk yield was noted for the following descriptive exterior traits: rump angle (r = -0.303), angle of the hind limbs of the rump (r = -0.141), and teat length (r = -0.079). Product Description popup.authors Nataliia H. Cherniak Oksana P. Honcharuk Nazarii S. Cherniak popup.nrat_date 2026-01-30 Close