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Repeated Records Animal Model to Estimate Genetic Parameters of Ultrasound Measurement Traits in Hanwoo Cows

반복모형을 이용한 한우 초음파 측정형질의 유전모수추정

  • 박철현 (경상대학교 응용생명과학부(BK21).농업생명과학연구원) ;
  • 구양모 (한국종축개량협회) ;
  • 김병우 (부산대학교) ;
  • 선두원 (경상대학교 응용생명과학부(BK21).농업생명과학연구원) ;
  • 김정일 (한국종축개량협회) ;
  • 송치은 (한국종축개량협회) ;
  • 이기환 (한국종축개량협회) ;
  • 이재윤 (한국종축개량협회) ;
  • 정용호 (한국종축개량협회) ;
  • 이정규 (경상대학교 응용생명과학부(BK21).농업생명과학연구원)
  • Received : 2011.11.10
  • Accepted : 2012.03.28
  • Published : 2012.04.30

Abstract

The present study data were obtained from 36,894 cows in Korea Animal Improvement Association from 2001 to 2009 which was subjected for ultrasound measurements (eye muscle area, back-fat thickness, marbling score) and descent. Repeated record models were carried out using 7,913 of 36,894 of total animal traits. The ultrasound measured traits and performance test data were used to study the chest girth, body condition score, eye muscle area, back-fat thickness and marbling score with genetic correlation and parameters for the ultrasound measured traits using REMLF90 program. Genetic correlation of eye muscle area with back-fat thickness, marbling score and back-fat thickness with marbling score were noticed in repeated records animal model as 0.69, 0.54, and 0.59, whereas in multiple trait animal model method were 0.07, 0.66, and 0.39, respectively. Repeated records of animal models were used as positive correlation of traits. Multiple trait animal models were used as negative correlation of eye muscle area with marbling score. The analysis on repeat records of animal models using ultrasound measurements about Korean cattle showed positive effects for each traits. In comparison differences between the repeat records of animal models and multiple trait animal models was found with higher traits of her, the heritability and repeatability was found higher in repeat records animal models. In light of these assessments, carcass traits by ultrasound measurements are expected to help and improve an accurate analysis of each trait and if the research analysis using repeat records of animal models continue when we estimate genetic ability of these traits.

Keywords

Carcass trait;Repeated records animal model;Ultrasound

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Cited by

  1. Estimation of Genetic Parameters for Ultrasound and Carcass Traits in Hanwoo vol.54, pp.5, 2012, https://doi.org/10.5187/JAST.2012.54.5.331