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So what to do with these situations where selected proportion and accuracy of selection cannot be established very well? One solution can be to predict the response to selection as the average genetic potential in the offspring of each mating based on the EBV of the sire and the dam. As we have seen in the chapter about genetic models, knowing the EBV in the parents only gives you some idea about the average EBV of the offspring, if there is no information on the Mendelian sampling. Because: Aoffspring = ½ Asire + ½ Adam + MS.
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In conclusion: predicting genetic response to selection assuming a selected proportion and an accuracy of selection is very useful, but be aware of the (lack of) accuracy of your assumptions! |
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