Towards assessing indirect genetic effects in dairy cattle

We could estimate IGE in dairy cattle with high accuracy and precision in a simulated population of 10,000 phenotyped cows distributed over 50-200 herds. A smaller IGE variance led to less precise estimates and lower breeding value accuracies. Ignoring information about the intensity of contact in the model would be worse than using imprecise intensities, and using technology that also monitors the direction of contact may be beneficial to estimate variance components of IGE.

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Publication Details

Journal
Genetics Selection Evolution
Published
2025-07-21
DOI
https://doi.org/10.1186/s12711-025-00988-w
Citations
1
Primary Topic
Genetic and phenotypic traits in livestock
Type
article
Field-Weighted Citation Impact
1.82

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article

Towards assessing indirect genetic effects in dairy cattle

F Fikse, Piter Bijma, I. Hansson, Lars Rönnegård
1 citations
Genetics Selection Evolution
Genetic and phenotypic traits in livestock
1.82
article

Towards assessing indirect genetic effects in dairy cattle

F Fikse, Piter Bijma, I. Hansson, Lars Rönnegård
article en
1 citations

Abstract

We could estimate IGE in dairy cattle with high accuracy and precision in a simulated population of 10,000 phenotyped cows distributed over 50-200 herds. A smaller IGE variance led to less precise estimates and lower breeding value accuracies. Ignoring information about the intensity of contact in the model would be worse than using imprecise intensities, and using technology that also monitors the direction of contact may be beneficial to estimate variance components of IGE.

Genetics Selection EvolutionVol. 57(1)
Dalarna University (SE), Scotland's Rural College (GB), Swedish University of Agricultural Sciences (SE), Wageningen University & Research (NL)
Svenska Forskningsrådet Formas, Vetenskapsrådet, Sveriges Lantbruksuniversitet
Openalex Percentile: Top 14%
Genetic and phenotypic traits in livestock
1.82
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