Having a repeat, high-value ancestor in a horse’s pedigree marks narrowed genetic diversity, the author writes. Photo: Harlequin129/iStock/Getty Images

Linebreeding horses drives genetic bottlenecks

Too much linebreeding and prioritizing pedigree can narrow genetic diversity and lead to horse health problems in future generations of foals

Reading Time: 4 minutes Too much linebreeding and prioritizing pedigree can narrow genetic diversity and lead to horse health problems in future generations of foals.