Situations in which progeny testing is used to select animals 

• When the character of the parents can be determined after slaughter
• When selecting animal for weakly inherited traits
• When selecting animals for traits expressed in one sex (e.g. milk production for a bull)
• In case selection of an animal sire will definitely be inaccurate
• In case heritability of a particular character takes a long time

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Dr. Bbosa Science