Modeling relationships between calving traits: a comparison between standard and recursive mixed models.

Genetics, Selection, Evolution : GSE
Evangelina López de MaturanaG J M Rosa

Abstract

The use of structural equation models for the analysis of recursive and simultaneous relationships between phenotypes has become more popular recently. The aim of this paper is to illustrate how these models can be applied in animal breeding to achieve parameterizations of different levels of complexity and, more specifically, to model phenotypic recursion between three calving traits: gestation length (GL), calving difficulty (CD) and stillbirth (SB). All recursive models considered here postulate heterogeneous recursive relationships between GL and liabilities to CD and SB, and between liability to CD and liability to SB, depending on categories of GL phenotype. Four models were compared in terms of goodness of fit and predictive ability: 1) standard mixed model (SMM), a model with unstructured (co)variance matrices; 2) recursive mixed model 1 (RMM1), assuming that residual correlations are due to the recursive relationships between phenotypes; 3) RMM2, assuming that correlations between residuals and contemporary groups are due to recursive relationships between phenotypes; and 4) RMM3, postulating that the correlations between genetic effects, contemporary groups and residuals are due to recursive relationships between phen...Continue Reading

References

Jun 5, 2003·Journal of Dairy Science·G R WiggansC P Van Tassell
Jun 22, 2007·Journal of Dairy Science·B HeringstadD Gianola

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Citations

Oct 4, 2012·Animal : an International Journal of Animal Bioscience·M FinaJ Casellas
May 25, 2013·Animal : an International Journal of Animal Bioscience·B M EscribanoM D Rubio
Nov 4, 2011·Genetics, Selection, Evolution : GSE·Bruno D ValenteRobledo A Torres
Feb 12, 2011·Genetics, Selection, Evolution : GSE·Guilherme J M RosaMartinho A Silva
Jul 14, 2011·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·J Jamrozik, L R Schaeffer
May 15, 2015·Genetics, Selection, Evolution : GSE·Francesco TiezziChristian Maltecca
Dec 21, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sang HeYong Jiang
Jan 9, 2019·Animal : an International Journal of Animal Bioscience·M GhasemiR Abdoli
Dec 12, 2012·Journal of Animal Science·G J M Rosa, B D Valente
Oct 3, 2019·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Christian MalteccaFrancesco Tiezzi
Mar 29, 2020·Animal Science Journal = Nihon Chikusan Gakkaihō·Keiichi Inoue
Jun 24, 2017·G3 : Genes - Genomes - Genetics·Katrin TöpnerChris-Carolin Schön
Nov 23, 2012·G3 : Genes - Genomes - Genetics·Vanessa S WindhausenAlbrecht E Melchinger
May 15, 2013·Journal of Agricultural and Food Chemistry·Rita H Mumm

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Software Mentioned

SEM
BOA

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