A. T. Bissembaev, Kh. A. Amerkhanov, Yu. A. Yuldashbayev, J. M. Kassenov, S. T. Zhali, A. E. Chindalieyv, D. A. Baimukanov, V. A. Demin
{"title":"Results from Index Evaluation of Kazakh White-Headed and Hereford Cattle for Liveweight","authors":"A. T. Bissembaev, Kh. A. Amerkhanov, Yu. A. Yuldashbayev, J. M. Kassenov, S. T. Zhali, A. E. Chindalieyv, D. A. Baimukanov, V. A. Demin","doi":"10.3103/s106836742401004x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results from the research study to show the dynamics of liveweight for the Kazakh White-Headed and Hereford cattle youngstock and the index evaluation for liveweight to create the subsequent breeding livestock populations have been reported. The selection index evaluation for liveweight (at birth, weaning, and the age of 12 months) was performed with the best linear unbiased prediction (BLUP) method to form the breeding herds on main farms. The method to estimate the selection index value was developed based on the statistical method for the animal genetic model and the predicted breeding-value indices for three production parameters: liveweight at birth, weaning, and the age of 12 months. Overall, 9503 and 2766 farms for rearing the Kazakh White-Headed and the Hereford cattle livestock, respectively, were analyzed. The accuracy of the breeding value index estimation with the BLUP AM method for the Kazakh White-Headed calf bulls and heifers at birth, weaning, and the age of 12 months comprised 0.509–0.557 and 0.534–0.573, 0.274–0.319 and 0.354–0.368, and 0.336–0.418 and 0.388–0.415, respectively. The accuracy of the breeding value index estimation with the BLUP AM method for the Hereford calf bulls and heifers at birth, weaning, and the age of 12 months comprised 0.531–0.810 and 0.511–0.565, 0.330–0.608 and 0.257–0.366, and 0.386–0.498 and 0.342–0.414, respectively. The BLUP AM method can provide the opportunity to improve the accuracy of evaluation of the Kazakh White-Headed and Hereford cattle livestock through the liveweight measurements at birth, weaning, and the yearling age.</p>","PeriodicalId":21531,"journal":{"name":"Russian Agricultural Sciences","volume":"149 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Agricultural Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s106836742401004x","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The results from the research study to show the dynamics of liveweight for the Kazakh White-Headed and Hereford cattle youngstock and the index evaluation for liveweight to create the subsequent breeding livestock populations have been reported. The selection index evaluation for liveweight (at birth, weaning, and the age of 12 months) was performed with the best linear unbiased prediction (BLUP) method to form the breeding herds on main farms. The method to estimate the selection index value was developed based on the statistical method for the animal genetic model and the predicted breeding-value indices for three production parameters: liveweight at birth, weaning, and the age of 12 months. Overall, 9503 and 2766 farms for rearing the Kazakh White-Headed and the Hereford cattle livestock, respectively, were analyzed. The accuracy of the breeding value index estimation with the BLUP AM method for the Kazakh White-Headed calf bulls and heifers at birth, weaning, and the age of 12 months comprised 0.509–0.557 and 0.534–0.573, 0.274–0.319 and 0.354–0.368, and 0.336–0.418 and 0.388–0.415, respectively. The accuracy of the breeding value index estimation with the BLUP AM method for the Hereford calf bulls and heifers at birth, weaning, and the age of 12 months comprised 0.531–0.810 and 0.511–0.565, 0.330–0.608 and 0.257–0.366, and 0.386–0.498 and 0.342–0.414, respectively. The BLUP AM method can provide the opportunity to improve the accuracy of evaluation of the Kazakh White-Headed and Hereford cattle livestock through the liveweight measurements at birth, weaning, and the yearling age.
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