Shocking Drop for DNA Bestseller Ranger: An Analysis

Notable. During the Dutch December release, Double W Ranger plummeted to 288 gNVI (-117). With 110,000 first inseminations during the past two years, he was the most used sire in the Netherlands and Flanders. The unprecedented drop of DNA bestseller Ranger is reason to inquire with Gerben de Jong, chair of the Dutch data centre AEU for an explanation. Central in De Jong’s reconstruction: the unnoticed impact of large numbers of DNA-tested females on the breeding value estimation of individual sires.

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