• Home
  • E-Submission
  • Sitemap
  • Contact Us
Asian-Australas J Anim Sci. Search

CLOSE


Go to Top Go to Bottom
Asian-Australas J Anim Sci > Volume 23(7); 2010 > Article
Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2010;23(7): 848-854.
DOI: https://doi.org/10.5713/ajas.2010.90555    Published online June 21, 2010.
Genetic Relationship between Carcass Traits and Carcass Price of Korean Cattle
Jongbok Kim, Daejung Kim, Jeongkoo Lee, Chaeyoung Lee
Abstract
The objectives of this study were to estimate genetic parameters for the carcass price and carcass traits contributing to carcass grading and to investigate the influence of each carcass trait on the carcass price using multiple regression and path analyses. Data for carcass traits and carcass prices were collected from March 2003 to January 2009 on steers of Korean cattle raised at private farms. The analytical mixed animal model, including slaughter house-year-month combination, linear and quadratic slaughter age as fixed effects and random animal and residual effects, was used to estimate genetic parameters. The effects of carcass traits on the carcass price were evaluated by applying multiple regression analyses. Heritability estimates of carcass traits were 0.200.08 for carcass weight (CWT), 0.330.10 for back fat thickness (BFT), 0.070.05 for eye-muscle area (EMA) and 0.250.10 for marbling score (MS), and those of carcass prices were 0.210.10 for auction price per 1 kg of carcass weight (AP) and 0.130.07 for total price (CP). Genetic correlation coefficients of AP with CWT and MS were -0.350.29 and 0.990.04, respectively, and those of CP with CWT and MS were 0.590.22 and 0.390.29 respectively. If an appropriate adjustment for temporal economic value is available, the moderate heritability estimates of AP and CP might suggest their potential use as the breeding objectives for improving the gross incomes of beef cattle farms. The large genetic correlation estimates of carcass price variables with CWT and MS implied that simultaneous selection for both CWT and MS would be also useful in enhancing income.
Keywords: Carcass Price; Carcass Trait; Heritability; Multiple Regression; Path Analyses


ABOUT
SPECIALTIES
BROWSE ARTICLES
FOR AUTHORS AND REVIEWERS
Editorial Office
Asian-Australasian Association of Animal Production Societies(AAAP)
Room 708 Sammo Sporex, 23, Sillim-ro 59-gil, Gwanak-gu, Seoul
08776, Korea   TEL : +82-2-888-6558    FAX : +82-2-888-6559   
E-mail : jongkha@hotmail.com               

Copyright © 2019 by Asian-Australasian Journal of Animal Sciences. All rights reserved.

Developed in M2community

Close layer
prev next