Study on Effective Population Size of Holstein Population in Korea

우리나라 Holstein 젖소의 유효집단크기 조사 연구

  • Won, Jeong-Il (National Institute of Animal Science, R.D.A.) ;
  • Kim, Si-Dong (National Institute of Animal Science, R.D.A.) ;
  • Cho, Kwang-Hyun (National Institute of Animal Science, R.D.A.) ;
  • Min, Hong-Lip (Dairy Cattle Improvement Center, National Agricultural Cooperative) ;
  • Koo, Yang-Mo (Korean Animal Improvement Association) ;
  • Yoon, Ho-Baek (National Institute of Animal Science, R.D.A.)
  • 원정일 (농촌진흥청 국립축산과학원) ;
  • 김시동 (농촌진흥청 국립축산과학원) ;
  • 조광현 (농촌진흥청 국립축산과학원) ;
  • 민홍립 (농협중앙회 젖소개량사업소) ;
  • 구양모 (한국종축개량협회) ;
  • 윤호백 (농촌진흥청 국립축산과학원)
  • Received : 2013.06.23
  • Accepted : 2013.10.15
  • Published : 2013.10.31


This study was carried out to estimate the average inbreeding coefficients and effective population size (EPS) and to seek alternatives on the problems of Holstein cattle in Korea. The data used in this study was obtained from the Korean Animal Improvement Association (KAIA) and 635,268 heads of Holstein records out of 1,872,195 Holstein registration data were used for the analysis. The average inbreeding coefficients were estimated at a range of 0.11 to 1.07%. The average inbreeding coefficients at the $14^{th}$, $19^{th}$ and $22^{nd}$ generation were estimated at 0.43%, 0.92% and 1.07%, respectively. The estimated inbreeding coefficients within the range of 0%, 0 to 6.25%, 6.25 to 12.5%, 12.5 to 25%, and >25% were observed in 50.5%, 48.3%, 0.8%, 0.1%, and 0.3% of the animals, respectively. The estimated effective population size (EPS) was 619 heads from the $8^{th}$ to $22^{nd}$ generation, and 922 heads from the $19^{th}$ to $22^{nd}$ generation.


Inbreeding coefficient;Effective population size;Holstein


Supported by : 농촌진흥청


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