Show simple item record

dc.contributor.authorNorris, D.
dc.contributor.authorVarona Aguado, Luís
dc.contributor.authorVisser, D. P.
dc.contributor.authorTheron, H. E.
dc.contributor.authorVoordewind, S. F.
dc.contributor.authorNesambuni, E. A.
dc.description.abstractThe objective of this study was to estimate dominance variance for number born alive (NBA), 21- day litter weight (LWT21) and interval between parities (FI) in South African Landrace pigs. A total of 26223 NBA, 21335 LWT21 and 16370 FI records were analysed. Bayesian analysis via Gibbs sampling was used to estimate variance components and genetic parameters were calculated from posterior distributions. Estimates of additive genetic variance were 0.669, 43.46 d2 and 9.02 kg2 for NBA, FI and LWT21, respectively. Corresponding estimates of dominance variance were 0.439, 123.68 d2 and 2.52 kg2, respectively. Dominance effects were important for NBA and FI. Permanent environmental effects were significant for FI and LWT21. It may be beneficial to evaluate non-additive genetic merit of individuals and families in addition to their transmitting abilities. A breeding program that capitalizes on non-additive genetic merit may be desirable.ca_ES
dc.publisherSouth African Society for Animal Scienceca_ES
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofSouth African Journal of Animal Science, 2006, vol. 36, núm. 4, p. 261-268ca_ES
dc.rightscc-by (c) Norris et al., 2006ca_ES
dc.subjectNon-additive genetic effectsca_ES
dc.subjectBayesian analysisca_ES
dc.subjectGenetic parametersca_ES
dc.titleEstimation of the additive and dominance variances in South African Landrace pigsca_ES

Files in this item


This item appears in the following Collection(s)

Show simple item record

cc-by (c) Norris et al., 2006
Except where otherwise noted, this item's license is described as cc-by (c) Norris et al., 2006