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G.J.M. Rosa

Publications of : G.J.M. Rosa
Animal Genetics   Research Article

Bayesian analyses of genetic parameters for growth traits in Nellore cattle raised on pasture

This study was carried out to investigate (co)variance components and genetic parameters for growth traits in beef cattle using a multi-trait model by Bayesian methods. Genetic and residual (co)variances and parameters were estimated for weights at standard ages of 120 (W120), 210 (W210), 365 (W365), and 450 days (W450), and for pre- and post-weaning daily weight ga.. Read More»

Genet. Mol. Res. 16(3): gmr16039606

DOI: 10.4238/gmr16039606

Animal Genetics   Research Article

Quantitative genetic study of age at subsequent rebreeding in Nellore cattle by using survival analysis

    M.H. Van Melis, L.G.G. Figueiredo, H.N. Oliveira, J.P. Eler,G.J.M. Rosa, M.L. Santana Jr., F.M. Rezende and J.B.S. Ferraz

The continuous trait age at subsequent rebreeding (ASR) was evaluated using survival analysis in Nellore breed cows that conceived for the first time at approximately 14 months of age. This methodology was chosen because the restricted breeding season produces censored data. The dataset contained 2885 records of ASR (in days). Records of females that did not produce.. Read More»

Genet. Mol. Res. 13(2): http://dx.doi.org/2014.May.30.2

DOI: http://dx.doi.org/10.4238/2014.May.30.2