Analysis of prolificacy in sows of hyperprolific lines of Large White breed

V. Matoušek, A. Čermáková, N. Kernerová and P. Králová
Additional contact information
V. Matoušek: University of South Bohemia, Faculty of Agriculture, České Budějovice, Czech Republic
A. Čermáková: University of South Bohemia, Faculty of Agriculture, České Budějovice, Czech Republic
N. Kernerová: University of South Bohemia, Faculty of Agriculture, České Budějovice, Czech Republic
P. Králová: University of South Bohemia, Faculty of Agriculture, České Budějovice, Czech Republic

Czech Journal of Animal Science, 2005, vol. 50, issue 4, 155-162

Abstract: The objective of the paper was to evaluate the results of reproductive performance of sows in some elite breeding herds of the Large White breed included in experimental herds for the production of hyperprolific lines of dam breeds. The set consisted of 98 sows with the known genotypes of ESR, FSHâ and PRLR genes. The dendrogram shows that on the basis of their genetic outfit the sows can be divided into two clusters. The first cluster can be described as a cluster with marked dominance of HPL sows and the second cluster with marked dominance of the sows of basic herd. The first cluster consisted of individuals in which the preferred genotype AA of PRLR gene was not detected. As for FSHâ gene, the beneficial genotype BB was found out in 74.10% of sows. In ESR gene the beneficial genotype DD was recorded only in 11.10% of individuals. On average for the lifetime performance they delivered by 2.08 piglets more in all born piglets and by 1.96 piglets more in live-born piglets per litter. Differences in the reproductive traits between HPL sows and the sows of basic herd in the first cluster were statistically highly significant. On the contrary, genotype AA of PRLR gene was identified in all sows of the second cluster, 61.36% of animals possessed beneficial genotype BB of FSHâ gene. As for ESR gene, beneficial genotype DD was identified within the whole cluster in 31.82% of sows. In lifetime performance the HPL sows had on average by 1.10 individuals more in all born piglets and by 1.01 more in live-born piglets (statistically significantly higher values). The unambiguous expression of a positive effect of preferred genotypes of selected candidate genes failed to be confirmed by the results of statistical analyses testing the associations of candidate genes for pig reproduction with selected parameters of breeding value and prolificacy of sows.

Keywords: sow; Large White; hyperprolific line; reproduction; ESR; FSHâ; PRLR (search for similar items in EconPapers)
Date: 2005
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://cjas.agriculturejournals.cz/doi/10.17221/4009-CJAS.html (text/html)
http://cjas.agriculturejournals.cz/doi/10.17221/4009-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:50:y:2005:i:4:id:4009-cjas

DOI: 10.17221/4009-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 ().