Accuracy of Genomic Breeding Values in Layer Chickens
Author Information
Author(s): Anna Wolc, Jesus Arango, Petek Settar, Janet E. Fulton, Neil P. O'Sullivan, Rudolf Preisinger, David Habier, Rohan Fernando, Dorian J. Garrick, Jack C. M. Dekkers
Primary Institution: Department of Genetics and Animal Breeding, Poznan University of Life Sciences
Hypothesis
The study aims to evaluate the accuracy of genomic estimated breeding values (GEBV) in a closed population of layer chickens and quantify their persistence over five generations.
Conclusion
GEBV accuracy is more persistent than pedigree-based breeding values, but retraining every generation is recommended for optimal genomic selection.
Supporting Evidence
- GEBV accuracy was more persistent than pedigree-based breeding values.
- Retraining every generation is recommended for genomic selection.
- The study analyzed data from 16 economically important traits.
Takeaway
This study shows that using genetic markers helps predict how well chickens will breed over time, and it's important to update these predictions regularly.
Methodology
The study used animal models with genomic and pedigree relationship matrices and Bayesian model averaging methods to analyze data from 16 traits across five generations.
Limitations
The study's findings may not apply to populations under different selection pressures or with different genetic architectures.
Participant Demographics
The study involved layer chickens from a closed breeding line, with data collected over five generations.
Digital Object Identifier (DOI)
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