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Animal bioscience2022; 35(5); 659-669; doi: 10.5713/ab.21.0409

National genomic evaluation of Korean thoroughbreds through indirect racing phenotype.

Abstract: Thoroughbred horses have been bred exclusively for racing in England for a long time. Additionally, because horse racing is a global sport, a healthy leisure activity for ordinary citizens, and a high-value business, systematic racehorse breeding at the population level is a requirement for continuous industrial development. Therefore, we established genomic evaluation system (using prize money as horse racing traits) to produce spirited, agile, and strong racing horse population. Methods: We used phenotypic data from 25,061 Thoroughbred horses (all registered individuals in Korea) that competed in races between 1994 and 2019 at the Korea Racing Authority and constructed pedigree structures. We quantified the improvement in racehorse breeding output by year in Korea, and this aided in the establishment of a high-level horse-fill industry. Results: We found that pedigree-based best linear unbiased prediction method improved the racing performance of the Thoroughbred population with high accuracy, making it possible to construct an excellent Thoroughbred racehorse population in Korea. Conclusions: This study could be used to develop an efficient breeding program at the population level for Korean Thoroughbred racehorse populations as well as others.
Publication Date: 2022-01-21 PubMed ID: 35073661PubMed Central: PMC9065785DOI: 10.5713/ab.21.0409Google Scholar: Lookup
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  • Journal Article

Summary

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The research article presents a study on genomic evaluation of Korean thoroughbreds, aiming to improve racehorse breeding at a population level by evaluating racing traits through prize money.

Objectives and Background

  • Thoroughbred horses have always been bred for racing, particularly in England, and is now a global sport that requires systematic breeding for continued industrial development.
  • Recognizing this need, the researchers aimed to establish a genomic evaluation system that uses prize money as a measure of racing traits.
  • The objective of the study was to help produce a population of spirited, agile, and strong racing horses.

Methods Applied

  • The study used phenotypic data from 25,061 Thoroughbred horses, which included all registered individuals in Korea that competed in races between 1994 and 2019.
  • The researchers constructed pedigree structures using this data.
  • They also quantified improvements in racehorse breeding output by year in Korea. This information was used to help establish a high-level horse-fill industry.

Results Garnered

  • The results of the study showed that a pedigree-based method known as the best linear unbiased prediction improved the racing performance of the Thoroughbred population accurately.
  • By using this prediction method, the researchers were able to construct an excellent Thoroughbred horse race population in Korea.

Study’s Conclusions

  • The study concluded that the findings could be utilized to develop an efficient breeding program at the population level.
  • While the study focused on Korean Thoroughbred racehorse populations, the conclusions and methods could potentially be applied to other horse populations.

Cite This Article

APA
Lee J, Shin D, Kim H. (2022). National genomic evaluation of Korean thoroughbreds through indirect racing phenotype. Anim Biosci, 35(5), 659-669. https://doi.org/10.5713/ab.21.0409

Publication

ISSN: 2765-0189
NlmUniqueID: 101774366
Country: Korea (South)
Language: English
Volume: 35
Issue: 5
Pages: 659-669

Researcher Affiliations

Lee, Jinwoo
  • Korea Racing Authority (KRA), Gwacheon 13822, Korea.
Shin, Donghyun
  • Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Korea.
Kim, Heebal
  • Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.
  • eGnome, Inc., Seoul 05836, Korea.

Grant Funding

  • Korea Racing Authority

Conflict of Interest Statement

. We certify that there is no conflict of interest with any financial organization regarding the material discussed in the manuscript. Kim H is an employee of eGnome, Inc.

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