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Correlation Analyses on Body Size Traits, Carcass Traits and Primal Cuts in Hanwoo Steers

한우 후대검정우 체척, 도체형질 및 부분육간 상관분석

  • 이재구 (농촌진흥청 국립축산과학원) ;
  • 이승수 (농촌진흥청 국립축산과학원) ;
  • 조광현 (농촌진흥청 국립축산과학원) ;
  • 조충일 (농촌진흥청 국립축산과학원) ;
  • 최연호 (농촌진흥청 국립축산과학원) ;
  • 최재관 (농촌진흥청 국립축산과학원) ;
  • 박병호 (농촌진흥청 국립축산과학원) ;
  • 나종삼 (전북대학교 동물생명공학과) ;
  • 최태정 (농촌진흥청 국립축산과학원)
  • Received : 2013.01.31
  • Accepted : 2013.08.19
  • Published : 2013.10.31

Abstract

This study was conducted to estimate the correlation structure between body size traits, carcass traits, and primal cuts in Hanwoo steers. Hanwoo progeny test data (body weight and body measurements) were collected from 2008 to 2010 from a total of 882 steers at the Hanwoo Improvement Main Center (NACF). Carcass traits considered were cold carcass weight, eye muscle area, backfat thickness, and marbling scores evaluated at the time of carcass grading. Correlation analyses were performed with observed scales of the traits and with residuals considering fixed environmental effects in generalized linear models. The correlation coefficient estimated between loin weight and chest girth was high at 0.74. The shank negatively correlated with pelvic width (-0.23) and hipbone width (-0.27). In addition, rib weight and chest girth was highly correlated (0.80). The correlation between carcass weight and chest girth was 0.86 in observed scale. Residual correlation between these traits was estimated at 0.65. Correlation between carcass weight and loin was 0.87 in the observed scale. Residual correlation was estimated at 0.83. The correlation coefficient estimated between shank weight and brisket and flank weight was negative at -0.69. Chest girth had a high correlation between primal cuts weight and body measurements. Thus, we believe that these results will provide a greater understanding on the relationship of primal cuts and other phenotypes, thus enabling valid production models for Hanwoo steers.

Keywords

Hanwoo;Correlation;Carcass;Primal cuts;Body size trait

Acknowledgement

Grant : 한우종축개량 가속화를 위한 선발기술 개발

Supported by : 국립축산과학원

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  2. Expected Genetic Progress of Primal Cut Weights and Percentages by Different Selection Index Weights in Hanwoo vol.49, pp.5, 2015, https://doi.org/10.14397/jals.2015.49.5.179
  3. Carcass Characteristics and Primal Cuts Yields by Live Weight of Hanwoo Steers in Gyeongbuk Province vol.52, pp.2, 2018, https://doi.org/10.14397/jals.2018.52.2.151