Relationships between longevity and conformation traits in Czech Fleckvieh cows

L. Zavadilová, E. Němcová, M. Štípková and J. Bouška
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L. Zavadilová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
E. Němcová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
M. Štípková: Institute of Animal Science, Prague-Uhříněves, Czech Republic
J. Bouška: Institute of Animal Science, Prague-Uhříněves, Czech Republic

Czech Journal of Animal Science, 2009, vol. 54, issue 9, 385-394

Abstract: The relationships between conformation and longevity traits were analysed in 58 493 Czech Fleckvieh cows first calved from 1994 to 2003. All cows were scored for conformation during the first lactation. Genetic correlations between longevity and conformation traits were estimated by bivariate runs using the VCE 4.0 program for variance component estimation. The values of heritability for conformation traits were in the range from 0.06 to 0.63 and for longevity traits from 0.04 to 0.05. Low or intermediate genetic relationships between recorded linear traits and longevity trait were found. The correlations were lower for functional longevity. Body measurements showed negative genetic correlations with real as well as functional longevity (-0.12 to -0.29). The dairy character negatively correlated with longevity traits (-0.18 to -0.26). The muscularity and udder showed a zero correlation with functional longevity, while the feet and legs were not correlated with real longevity. The highest positive genetic correlations between real longevity and objectively scored linear type traits were found for hock (0.24), rear udder attachment (0.28), fore udder length (0.16) and central ligament (0.11). On the contrary, the correlation between the udder depth and the milk-corrected longevity was positive (0.28) and higher than in the case of real longevity.

Keywords: cattle; Czech Fleckvieh; longevity; conformation traits; genetic correlation (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:54:y:2009:i:9:id:1685-cjas

DOI: 10.17221/1685-CJAS

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