Novotna Alexandra, Birovas Alena, Vostra-Vydrova Hana, Vesela Zdenka, Vostry Lubos
Department of Genetics and Breeding of Farm Animals, Institute of Animal Science, Pratelstvi 815, 10401 Praque, Czech Republic.
Department of Ethology and Companion Animal Science, Czech University of Life Sciences Prague, Kamycka 129, 16521 Praque, Czech Republic.
Animals (Basel). 2022 Oct 27;12(21):2957. doi: 10.3390/ani12212957.
The aim of this study was to estimate the genetic parameters of a one-day performance test together with the linear type traits of 3-year-old warmblood horses. The study of genetic parameters was based on 5958 tested horses in the period 1998-2021. A total of 22 traits of linear description, three quantitatively measured traits, and one summary mark from the performance test were tested. The model equation included the fixed effect of gender and combination effects of classifier-year of evaluation-place. A single-trait animal model was used for the estimation of heritability and genetic variance, while the two-trait animal model was applied for the estimation of variance and covariance between all traits. The heritability of the overall score of the performance test was 0.25. The range for heritability was between 0.04 and 0.33 for the linear type traits and between 0.46 and 0.57 for the quantitatively measured traits. Genetic correlations were between -0.47 and 0.92. The estimated genetic parameters suggest that the results from the performance test can be incorporated into genetic evaluation in the Czech Republic.
本研究的目的是估计一日性能测试的遗传参数以及3岁温血马的线性体型性状。遗传参数的研究基于1998年至2021年期间的5958匹受试马匹。共测试了22个线性描述性状、3个定量测量性状以及性能测试中的一个综合评分。模型方程包括性别的固定效应以及分类器-评估年份-地点的组合效应。单性状动物模型用于估计遗传力和遗传方差，而双性状动物模型用于估计所有性状之间的方差和协方差。性能测试总体评分的遗传力为0.25。线性体型性状的遗传力范围在0.04至0.33之间，定量测量性状的遗传力范围在0.46至0.57之间。遗传相关性在-0.47至0.92之间。估计的遗传参数表明，性能测试的结果可纳入捷克共和国的遗传评估中。
