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Genetic correlations between production and semen traits in pig

Published online by Cambridge University Press:  01 August 2009

J. Wolf*
Affiliation:
Institute of Animal Science, P.O. Box 1, CZ 10401 Prague-Uhříněves, Czech Republic
*
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Abstract

Genetic correlations between production traits (average daily gain from birth till the end of the field test and ultrasonically predicted lean meat content at the end of the field test) and semen traits (semen volume, sperm concentration, motility, percentage of abnormal spermatozoa, total number of spermatozoa and number of functional spermatozoa) were estimated from a large dataset (44 500 observations for production traits and more than 150 000 ejaculates from 2077 boars). The boars belonged to the breeds Duroc, Piétrain and Large White or were crossbreds between them. All estimated genetic correlations were low (maximal absolute value 0.13). Therefore, selection on production traits is expected to have only low effects on semen traits.

Type
Full Paper
Copyright
Copyright © The Animal Consortium 2009

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References

Estany, J, Sorensen, D 1995. Estimation of genetic parameters for litter size in Danish Landrace and Yorkshire pigs. Animal Science 60, 315324.CrossRefGoogle Scholar
Frey, M, Hofer, A, Künzi, N 1997. Comparison of models with a fixed or a random contemporary group effect for the genetic evaluation for litter size in pigs. Livestock Production Science 48, 135141.CrossRefGoogle Scholar
Grandjot, G, Brandt, H, Glodek, P 1997. Genetische und phänotypische Untersuchungen zu Eigenleistungs-, Sperma- und Fruchtbarkeitsmerkmalen von Besamungsebern. 2. Mitteilung: Beziehungen zwischen Eigenleistungs-, Sperma- und Fruchtbarkeitsmerkmalen. Archiv für Tierzucht 40, 433443.Google Scholar
Kovač, M, Groeneveld, E, García-Cortés, LA 2002. VCE-5 package for the estimation of dispersion parameters. In Proceedings of the 7th World Congress on Genetics Applied to Livestock Production (CD-ROM), Communication no. 28-06.Google Scholar
Neumaier, A, Groeneveld, E 1998. Restricted maximum likelihood estimation of covariances in sparse linear models. Genetics Selection Evolution 30, 326.CrossRefGoogle Scholar
Oh, SH, See, MT, Long, TE, Galvin, JM 2006. Estimates of genetic correlations between production and semen traits in boar. Asian-Australasian Journal of Animal Sciences 19, 160164.CrossRefGoogle Scholar
Robinson, JAB, Buhr, MM 2005. Impact of genetic selection on management of boar replacement. Theriogenology 63, 668678.CrossRefGoogle ScholarPubMed
SAS Institute Inc. 1988. SAS® Procedure Guide, Release 6.03 Edition, p. 11.SAS Institute Inc., Cary, NC.Google Scholar
Smital, J, De Sousa, LL, Mohsen, A 2004. Differences among breeds and manifestation of heterosis in AI boar sperm output. Animal Reproduction Science 80, 121130.CrossRefGoogle Scholar
Wolf, J, Peškovičová, D, Žáková, E, Groeneveld, E 2006. Additive and heterotic breed effects in the genetic evaluation of pig sire breeds. Animal Science 82, 455462.CrossRefGoogle Scholar
Wolf, J, Smital, J 2009. Quantification of factors affecting semen traits in AI boars from animal model analyses. Journal of Animal Science 87, 16201627.CrossRefGoogle Scholar