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http://dx.doi.org/10.5187/JAST.2006.48.2.161

Estimation of Genetic Variations for Linear Type Traits and Composite Traits on Holstein Cows  

이득환 (Department of Animal Life Resources, Hankyong National University)
Publication Information
Journal of Animal Science and Technology / v.48, no.2, 2006 , pp. 161-168 More about this Journal
Abstract
Genetic parameters for linear type and composite traits were estimated by using Bayesian inference via Gibbs sampling with a multiple threshold animal model in Holstein cows. Fifteen linear type traits and 5 composite traits were included to estimate genetic variance and covariance components in the model. In this study, 30,204 records were obtained in the cows from 305 sires. Heritability estimates for linear type traits had the estimates as high as 0.28~0.64. Heritability estimates for composite traits were also high, when the traits were assumed to be categorical traits. Final score was more correlated with the composite traits than with the linear type traits.
Keywords
Linear type trait; Categorical trait; Threshold model; Holstein; Genetic parameters;
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