Genetic parameter estimates for ultrasonic meat qualities in Hanwoo cows

D. H. Lee, Vivek Choudhary, G. H. Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Real time ultrasound data was generated on 10,596 live Hanwoo cows to study genetic variation on ultrasonic beef quality traits and to assess the best model to estimate genetic parameters on these traits. Pedigree stacking and data validation was done using the SAS statistical software and the genetic parameter estimates were obtained by EM-REML algorithm. Out of the five different multi-trait mixed animal models constructed, the optimal model included fixed effects of herd, year-season-appraisal, body condition score, linear and quadratic covariates for chest girth, the linear covariate effect of age and the random animal and residual effect of the five models studied. The heritability of longissimus muscle area (LMA), 12th rib measurement of back fat thickness (BF) and marbling score (MS) was 0.11, 0.17 and 0.15, respectively. Genetic correlation of LMA vs. BF, LMA vs. MS and BF vs. MS was -0.15, 0.06 and 0.61, respectively. The results showed presence of genetic variation in these ultrasonic beef quality traits in Hanwoo cows and suggest that the selection of Hanwoo cows may be possible by performing ultrasonic scans on live animals, which will ultimately be helpful in reducing the generation interval and the cost of selection procedure.

Original languageEnglish (US)
Pages (from-to)468-474
Number of pages7
JournalAsian-Australasian Journal of Animal Sciences
Volume19
Issue number4
DOIs
StatePublished - Jan 1 2006
Externally publishedYes

Fingerprint

fat thickness
marbling
backfat
Ultrasonics
longissimus muscle
Meat
meat quality
beef quality
ultrasonics
Fats
cows
Muscles
genetic variation
girth
residual effects
Ribs
chest
Pedigree
ribs
pedigree

Keywords

  • Beef Traits
  • Genetic Parameters
  • Hanwoo Cows
  • Ultrasound

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology

Cite this

Genetic parameter estimates for ultrasonic meat qualities in Hanwoo cows. / Lee, D. H.; Choudhary, Vivek; Lee, G. H.

In: Asian-Australasian Journal of Animal Sciences, Vol. 19, No. 4, 01.01.2006, p. 468-474.

Research output: Contribution to journalArticle

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