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Carcass Traits and Their Relationships in Hanwoo(Korean Native) Steers

한우 거세우의 도체 형질간의 관계

  • Baik, D.H. (Department of Animal Resources and Biotechnology, College of Agriculture, Chonbuk National University) ;
  • Hoque, M.A. (Department of Animal Breeding and Genetics, Bangladesh Agricultural University) ;
  • Park, H.K. (Department of Animal Resources and Biotechnology, College of Agriculture, Chonbuk National University) ;
  • Chung, Y.H. (Department of Animal Resources and Biotechnology, College of Agriculture, Chonbuk National University)
  • 백동훈 (전북대학교 농과대학) ;
  • 호크 M.A. (방글라데시 농과대학 동물육종유전학과) ;
  • 박형기 (전북대학교 농과대학) ;
  • 정이형 (전북대학교 농과대학)
  • Published : 2002.10.31

Abstract

This experiment was prosecuted to estimate the carcass traits and their relationships in Hanwoo steers. The mean carcass weight(CWT), back fat thickness (BFT), meat, bone, intra- muscular fat (IMF) and eye muscle area (EMA) of steers were 300.27 kg, 9.23 mm, 58.99%, 12.92%, 28.08% and 74.00 $cm^2$, respectively. The pHB(before aging), pHA(after aging), cook loss before aging($CL_B$) and cook loss after aging ($CL_A$) were 5.32, 5.60, 16.43% and 19.21%, respectively. It was also found that the MS and FC were 3.67 and 3.17, respectively. The EMA and quantity index (QIX) were positively correlated with CWT, meat% and bone% but negatively correlated with IMF%. The BFT was positively correlated with CWT and meat% but negatively correlated with bone% and IMF%. The pH (both before and after aging) was negatively correlated with CL (both before and after aging), water loss during freezing (WLF) and FC. The muscle score(MS) was negatively correlated with CL but positively correlated with WLF and FC. The ARM, HRD, CHW and CTM increased with the increasing of fat% and sharply decreased with the increasing of meat% in the carcass.

Keywords

Carcass traits;Eye muscle area;Back fat;Steer;Cook loss

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