02044naa a2200289 a 450000100080000000500110000800800410001902400300006010000240009024501300011426000090024430000070025349000070026052012160026765000110148365000090149465300260150365300260152965300180155565300210157370000170159470000220161170000190163370000170165270000260166977300590169520551052019-04-01       2016    bl uuuu     u00u1 u    #d7 a10.4238/gmr.150274712DOI1 aMEIRELLES, S. L. C.  aGenetic parameters for carcass traits and body weight using a Bayesian approach in the Canchim cattle.h[electronic resource]  c2016  a15  v15  aCorrelation between genetic parameters and factors such as backfat thickness (BFT), rib eye area (REA), and body weight (BW) were estimated for Canchim beef cattle raised in natural pastures of Brazil. Data from 1648 animals were analyzed using multi-trait (BFT, REA, and BW) animal models by the Bayesian approach. This model included the effects of contemporary group, age, and individual heterozygosity as covariates. In addition, direct additive genetic and random residual effects were also analyzed. Heritability estimated for BFT (0.16), REA (0.50), and BW (0.44) indicated their potential for genetic improvements and response to selection processes. Furthermore, genetic correlations between BW and the remaining traits were high (P &gt 0.50), suggesting that selection for BW could improve REA and BFT. On the other hand, genetic correlation between BFT and REA was low (P = 0.39 ± 0.17), and included considerable variations, suggesting that these traits can be jointly included as selection criteria without influencing each other. We found that REA and BFT responded to the selection processes, as measured by ultrasound. Therefore, selection for yearling weight results in changes in REA and BFT.  aCattle  aGado  aComposição da raça  aEspessura do toucinho  aOlho de lombo  aSeleção animal1 aMOKRY, F. B.1 aESPASANDIN, A. C.1 aDIAS, M. A. D.1 aBAENA, M. M.1 aREGITANO, L. C. de A.  tGenetics and Molecular Researchgv.15, n.2, june 2016.