A genetic analysis of meat compositions in Japanese Black cattle: Genetic parameters and sex influence

Summary Meat composition in beef is related to eating quality and food functionality. Genetic parameters for several meat compositions including free amino acid, peptide and sugar, however, remain poorly described. In this study, we estimated genetic parameters for 51 meat components, including free...

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Bibliographic Details
Published in:Journal of animal breeding and genetics (1986) 2017-10, Vol.134 (5), p.373-382
Main Authors: Onogi, A., Sasaki, S., Kobayashi, M., Ogino, A., Nozaki, T., Kurogi, K., Yasumori, T., Togashi, K., Iwata, H.
Format: Article
Language:English
Subjects:
Amino acids
Amino Acids - analysis
Animal models
Animals
Architecture
Beef
Beef cattle
Breeding
Cattle
Cattle - genetics
Correlation analysis
Eating quality
fatty acid compositions
Fatty acids
Fatty Acids - analysis
Female
food functionality
Food Quality
free amino acids
Gender aspects
Gender differences
Genetic analysis
Genetic Association Studies - veterinary
Heritability
Male
Meat
Meat - analysis
Parameter estimation
Peptides
Peptides - analysis
Phenotype
Quantitative Trait, Heritable
Sex
Sex differences
Sex Factors
sexual dimorphism
Sugar
Sugars - analysis
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Summary:Summary Meat composition in beef is related to eating quality and food functionality. Genetic parameters for several meat compositions including free amino acid, peptide and sugar, however, remain poorly described. In this study, we estimated genetic parameters for 51 meat components, including free amino acids, peptides, sugars and fatty acid compositions, and two carcase traits in 1,354 heifers and 1,797 steers of Japanese Black cattle. Heritability estimates were generally equivalent to or moderately greater than those in previous studies of this breed. Genetic correlations between free amino acids, peptides and sugars and carcase traits were often negative, suggesting a trade‐off between traits. Using two‐trait animal models that treat records from the two sexes as different traits, we estimated sex‐specific heritabilities and cross‐sex genetic correlations which indicate the sex differences in genetic architecture. In these analyses, 12 traits showed significant heritability differences between sexes and cross‐sex genetic correlations occasionally deviated from unity. These results could be used to inform future breeding schemes and investigations of the genetic architecture of meat compositions in beef.
ISSN:0931-2668
1439-0388
DOI:10.1111/jbg.12280