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Study Confirms Old Irish Goat’s 3,000-Year Lineage to Bronze Age Herds

The peer-reviewed analysis flags a recent genetic bottleneck in the surviving herds, sharpening calls for urgent conservation.

Overview

  • The research, led by University College Dublin with Queen's University Belfast and international partners, was published in the Journal of Archaeological Science.
  • Goat bones from Haughey’s Fort (c.1100–900 BCE) and medieval Carrickfergus were confirmed as Ireland’s oldest identified goat remains using radiocarbon dating and protein fingerprinting (ZooMS).
  • Ancient DNA comparisons found the strongest genetic affinity between those ancient goats and today’s Old Irish Goat, indicating continuity across roughly 3,000 years.
  • Modern Old Irish Goat populations show clear signs of inbreeding linked to a recent population collapse, in contrast to the greater genetic diversity seen in medieval samples.
  • Conservation groups, including the Old Irish Goat Society, say the findings validate the breed’s cultural significance and bolster the case for urgent protection and management of remaining herds.