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2004 | 45 | 3 | 331-339

Article title

Bayesian estimation of dominance merits in noninbred populations by using Gibbs sampling with two reduced sets of mixed model equations

Title variants

Languages of publication

EN

Abstracts

EN
Henderson's mixed model equations system is generally required in a Gibbs sampling application. In two previous studies, we proposed two indirect solving approaches that give dominance values in an animal model context with no need to process all this system. The first one does not require D-1 and the second is based on processing the additive animal model residuals. In the present work, we show that these two methods can be handled iteratively. Since the Bayesian approach is now a widely used tool in estimation of genetic parameters, the main part of this work is devoted to a Gibbs sampling application that can be accelerated by means of the aforementioned indirect solving methods. Three replicates of a population data set are simulated in the paper to compare the applications and estimates. This shows effectively that the estimates given by implementing a Gibbs sampler with each of the two suggested solving methods are obtained with less computational time and are comparable to those given by considering the integral system, particularly when priors are more weighted.

Discipline

Year

Volume

45

Issue

3

Pages

331-339

Physical description

Contributors

author
author

References

Document Type

ARTICLE

Publication order reference

A Chalh, Laboratoire de Genetique et Biometrie, Departement de Biologie, Faculte des Sciences de Tunis, Le Belvedere, 1060, Tunis, Tunisia

Identifiers

YADDA identifier

bwmeta1.element.element-from-psjc-8e3c9494-e04f-33e9-b9d8-df2dd79a5388
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