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Title: Full sib pens of pigs are not suitable to identify variance component of associative effect: a simulation study using Gibbs Sampling
Authors: Cheng, Jiqiu
Janssens, Steven ×
Buys, Nadine #
Issue Date: Feb-2009
Publisher: BioMed Central
Series Title: BMC Genetics vol:10
Article number: 9
Abstract: Background: Accounting for and quantifying the associative effect of each animal could improve both welfare of animals and response to selection. Because of the limitation of REML, Gibbs Sampling could be an alternative technique to estimate the variance component of the associative effect. The objective of this study was to investigate the estimation accuracy of the variance component of associative effect by using simulation via Gibbs Sampling. The simulated data comprised five generations of pigs. The breeding animals of each generation were selected randomly. In the simulation, variations were introduced for the methods of assigning pens (random, mixed sib and full sib), the number of pigs per pen (5 or 10), the number of breeding animals per generation (162 or 324) and the correlation between genetic direct effect and genetic associative effect (-0.5, 0.1 or +0.5). Each set of simulation was run for 30 replications.
URI: 
ISSN: 1471-2156
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Gene Technology (-)
× corresponding author
# (joint) last author

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