Estimated Breeding Value of Kazakh White-Headed Cattle Breed
Bissembayev A.T. Baimukanov D.A. Trukhachev V.I. Nazarbekov A.B. Zhali S.T. Abylgazinova A.T. Chindaliyev A.E.
2023Science Publications
American Journal of Animal and Veterinary Sciences
2023#18Issue 2
The purpose of the study is to establish the estimated breeding value index of Kazakh white-headed cattle by productive indicators. The Estimated Breeding Value (EBV) of the productive indicators of animals of the Kazakh white-headed breed was determined for 2018-2021. The index values were further interpreted as an assessment of the own genetic productivity of each evaluated animal relative to the corresponding average values. For the Kazakh white-headed breed, the estimated breeding values in terms of live weight at birth in 2018 ranged from-8.00 to +12.91, in 2019 from-8.02 to +19.42, in 2020 from-9.96 to-0.96, in 2021-9.87 to +19.91. The values by the indicator of live weight at weaning in 2018 ranged from-8.63 to +57.39, in 2019 from-23.27 to +57.31, in 2020 from 23.97 to-+57.29, in 2021-24.37 to +57.26. The estimated breeding value in terms of live weight at one year of age in 2018 varied in the range from-51.37 to +58.26, in 2019-58.53 to +72.10, in 2020-57.77 to +71.43, in 2021-52.73 to +72.00. The breeding value in terms of live weight for adult animals in 2018 ranged from-50.60 to +43.19, in 2019-135.95 to +118.86, in 2020 from-138.04 to +121.82, in 2021 from-140.56 to +112.43. The breeding value by the milking capacity of mothers of the Kazakh white-headed breed in 2018 ranged from-35.55 to +33.79, in 2019-8.85 to +46.67, in 2020 from-27.41 to +46.68, in 2021 from-30.26 to +46.65. The accuracy for the EBV of productive indicators of Kazakh white-headed breed animals was 0.004-0.999 by live weight at birth, 0.001-0.998 at weaning, 0.002-0.998 at 12 months, and 0.001-0.965 for adult animals. The estimated breeding value of dairy cows is 0.018-0.990. The features of the distribution of the indices of breeding value of the average daily increase of animals of the Kazakh white-headed breed in 2021 have been clarified. For the Kazakh white-headed cattle breed, the estimated breeding values in terms of the average daily gain from birth to 12 months of age are in the range from-183.56 to +813.34.
Beef Cattle , Estimated Breeding Value , Live Weight
Text of the article Перейти на текст статьи
Department of Animal Husbandry, Veterinary Medicine and Feed and Milk Quality Assessment, Scientific and Production Center for Animal Husbandry and Veterinary, Astana, Kazakhstan
Institute of Animal Science and Biology, Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
Department of Animal Husbandry
Institute of Animal Science and Biology
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026