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. 2013 Oct 9;111(6):530–538. doi: 10.1038/hdy.2013.77

Figure 4.

Figure 4

 Percent of maximum heterosis exploited in a two-step selection program as a function of the proportion of animals selected in step 1. In step 1 animals are selected based solely on predicted heterosis (accuracy of prediction=0.5). In step two the pre-selected animals are field-tested and a final selection is made based on true/observed heterosis. The overall proportion of selected animals is 10% (see Materials and Methods).