Genetic Parameters for Limousine Interbeef Genetic Evaluation of Calving Traits

VESELÁ, Zdeňka, BRZÁKOVÁ, Michaela, NOVOTNÁ, Alexandra and VOSTRÝ, Luboš. Genetic Parameters for Limousine Interbeef Genetic Evaluation of Calving Traits. Genes, 2024, 15, Article Number: 216. ISSN 2073-4425.
Year2024
CathegoryScientific publication in impacted journals
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Abstract

The aim of this study was to estimate across-country genetic correlations for calving traits (birth weight, calving ease) in the Limousine breed. Correlations were estimated for eight populations (Czech Republic, joint population of Denmark, Finland, and Sweden, France, Great Britain, Ireland, Slovenia, Switzerland, and Estonia). An animal model on raw performance accounting for acrosscountry interactions (AMACI) was used. (Co)variance components were estimated for pairwise combinations of countries. Fixed and random effects were defined by each country according to its national genetic evaluation system. The average across-country genetic correlation for the direct genetic effect was 0.85 for birth weight (0.69–0.96) and 0.75 for calving ease (0.62–0.94). The averagecorrelation for the maternal genetic effect was 0.57 for birth weight and 0.61 for calving ease. After the estimation of genetic parameters, the weighted bending procedure was used to compute the full Interbeef genetic correlation matrix. After bending, direct genetic correlations ranged from 0.62 to 0.84 (with an average of 0.73) for birth weight and from 0.58 to 0.82 (with an average of 0.68) for calving ease.