The objectives of this trial were to compare estimates of (co)variance components and genetic parameters for milk (MY), fat (FY) and protein yields (PY), and for fat (%F) and protein (%P) percentages, in single-trait and three-trait analyses by Bayesian inference. Heritability estimates for MY, FY, PY, %F e %P obtained in single-trait analyses were 0.26, 0.28, 0.25, 0.60 e 0.58, respectively, similar to the ones obtained in three-trait analyses. Genetic correlation among productions were positive, while among MY and percentages it was negative.

M. C Paula, E. N Martins, L. OC Silva, C. AL Oliveira, A. A Valotto, E. Gasparino

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 01.74, 2006
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