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1 results

  • Partition of the genetic trend to validate multiple selection decisions

  • L. A. García-Cortés, J. C. Martínez-Ávila, M. A. Toro
  • Journal:
    animal / Volume 2 / Issue 6 / June 2008
    Published online by Cambridge University Press:
    13 May 2008, pp. 821-824
    Print publication:
    June 2008

  • In this note, a procedure to partition the genetic trend of a selected population is presented. Each part of the genetic gain accounts for the Mendelian sampling terms of different groups of animals, which can be sometimes assigned to different selection policies. The method is based on a simple transformation of the predicted breeding values. The procedure was illustrated with two simulated examples. In the first example, the genetic trend is partitioned into two pieces, one coming from the selection on sires and the other coming from the selection on dams. The second example shows how the impact of an artificial insemination center in the genetic gain of the whole population can be evaluated.