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DairyTalk 701: Less Related, Less Reliable: Where Genomic Predictions Can Disadvantage Rare Cow Families - by Helmut Demmelhuber
This podcast episode is based on a technical article examining whether genomic selection can unintentionally overlook rare Holstein cow families. Prediction accuracy depends partly on how closely an animal is related to the reference population, which can leave genetically uncommon lines with less reliable genomic estimates and fewer opportunities to reach the top of selection lists. At the same time, established elite families may benefit from intensive preselection and superior management, making their apparent advantage more complex than genetics alone. Single-step evaluation and…
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