Reduction of traits for genetic evaluation of linear described traits in the Old Kladruber horse

L. Vostrý, J. Přibyl and P. Šimeček
Additional contact information
L. Vostrý: Faculty of Agrobiology, Food and Natural resources, Czech University of Life Sciences Prague, Prague, Czech Republic
J. Přibyl: Faculty of Agrobiology, Food and Natural resources, Czech University of Life Sciences Prague, Prague, Czech Republic
P. Šimeček: Institute of Animal Science, Prague-Uhříněves, Czech Republic

Czech Journal of Animal Science, 2012, vol. 57, issue 4, 160-170

Abstract: The estimated genetic parameters were used for selection of important conformation traits and reduction in the number of the described characteristics. For reduction in the number of described traits from the original 36 to 24, the traits were selected according to: measure of genetic similarity (cluster analysis), measure of uncertainty multidimensional quantity, value of the variance of aggregate genotype, value of the variance of selection index and correlation of trait to the first principal component of the genetic matrix. Reduction in the number of the described traits was based on the value of heritability coefficient and genetic correlations matrix. The reliabilities of selection indexes were estimated between 0.41 and 0.53. Among the three multivariate analysis methods evaluated in this study, the variance of selection index had the highest reliabilities of selection indexes. The estimation of selection index variance which omitted traits with low heritability coefficient and high genetic correlation was the most suitable for the traits selection. This procedure would enable the breeders to reduce field costs (e.g. time, labour) required for obtaining the genetic parameter estimates necessary for a specific breeding programme.

Keywords: multivariate analysis methods; reduction in the number of traits; selection index; Old Kladruber horse (search for similar items in EconPapers)
Date: 2012
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://cjas.agriculturejournals.cz/doi/10.17221/5891-CJAS.html (text/html)
http://cjas.agriculturejournals.cz/doi/10.17221/5891-CJAS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:57:y:2012:i:4:id:5891-cjas

DOI: 10.17221/5891-CJAS

Access Statistics for this article

Czech Journal of Animal Science is currently edited by Bc. Michaela Polcarová

More articles in Czech Journal of Animal Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().