Effect of age at first conception as a selection criterion on growth and carcass traits in Nellore cattle
Ludmilla Costa Brunes,
Fernando Baldi,
Marcos Fernando Oliveira e Costa
et al.
Abstract:The aim was to identify predictive traits of relatively easy measurement and which can be recorded early in life (age at first conception - AFCo), besides estimating its genetic correlations with growth and carcass traits in Nellore cattle. Age at first conception was considered the age at which the female had the first positive diagnosis for pregnancy. The estimation of (co)variance components and genetic parameters was performed using a linear animal model in two-trait analysis. The estimates of heritability… Show more
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