2012
DOI: 10.4025/actascianimsci.v34i1.10934
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Heterogeneous genetic (co)variances in simulated closed herds under selection

Abstract: ABSTRACT. Assuming that selection in closed herds can promote reduction in additive genetic variance, multiple regression models were used to estimate this change in additive genetic (co)variance component, over the years when the selection was done. Weights at 550 days (W550) were studied using simulated data of herds submitted to 20 years of selection. (Co)variance components were estimated assuming that the weight at 550 days was a new trait every five years, by multiple-trait analyses involving four traits… Show more

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