Genotype × environment interaction effects on carcass traits in Japanese Black cattle

Takayuki Ibi, H. Hirooka, A. K. Kahi, Y. Sasae, Y. Sasaki

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The importance of genotype × environment (region or management system) interactions for carcass traits in Japanese Black cattle was investigated using both univariate and multivariate animal models. The univariate approach was used mainly to test the significance of interaction effects. The multivariate approach was used to estimate genetic correlations, which indicated the magnitude of genotype × environment (GE) interactions. The more a genetic correlation deviates from 1, the larger the interaction. From the univariate approach, the addition of genotype × environment (region or management system) interaction (co)variance components resulted in an improved fit of the model for all traits in both cases (P <0.001). However, estimates of genetic correlation between regions obtained from the multivariate approach for hot carcass weight, LM area, rib thickness, s.c. fat thickness, and marbling score were 0.97, 0.95, 0.93, 0.97, and 0.93, respectively. The corresponding estimates between management systems were 0.84, 0.92, 0.84, 0.90, and 0.97, respectively. These results indicate that GE interaction effects on carcass traits of Japanese Black cattle may be biologically unimportant. Therefore, breeding values obtained using the multivariate method would rank sires similarly in all environments. Consequently, carcass traits measured in these two different regions or management systems can be treated as the same traits.

Original languageEnglish
Pages (from-to)1503-1510
Number of pages8
JournalJournal of Animal Science
Volume83
Issue number7
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

Wagyu
genotype-environment interaction
carcass characteristics
management systems
Genotype
genetic correlation
cattle
genotype
fat thickness
marbling
breeding value
carcass weight
ribs
sires
Ribs
animal models
Breeding
Animal Models
Fats
Weights and Measures

Keywords

  • Carcass Traits
  • Genotype × Environment Interaction
  • Japanese Black

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Ibi, T., Hirooka, H., Kahi, A. K., Sasae, Y., & Sasaki, Y. (2005). Genotype × environment interaction effects on carcass traits in Japanese Black cattle. Journal of Animal Science, 83(7), 1503-1510.

Genotype × environment interaction effects on carcass traits in Japanese Black cattle. / Ibi, Takayuki; Hirooka, H.; Kahi, A. K.; Sasae, Y.; Sasaki, Y.

In: Journal of Animal Science, Vol. 83, No. 7, 2005, p. 1503-1510.

Research output: Contribution to journalArticle

Ibi, T, Hirooka, H, Kahi, AK, Sasae, Y & Sasaki, Y 2005, 'Genotype × environment interaction effects on carcass traits in Japanese Black cattle', Journal of Animal Science, vol. 83, no. 7, pp. 1503-1510.
Ibi, Takayuki ; Hirooka, H. ; Kahi, A. K. ; Sasae, Y. ; Sasaki, Y. / Genotype × environment interaction effects on carcass traits in Japanese Black cattle. In: Journal of Animal Science. 2005 ; Vol. 83, No. 7. pp. 1503-1510.
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