Rare Old Irish Goat proven to descend from 3,000-year-old Bronze Age herds

Recent biomolecular research has confirmed that the Old Irish goat is more than just a local folklore and represents a direct, living connection to the island’s prehistoric past.

A study revealed that this critically endangered breed shares a continuous genetic lineage with goats that inhabited Ireland during the Late Bronze Age, over 3,000 years ago.

Researchers from University College Dublin (UCD) and Queen’s University Belfast used advanced genomic sequencing and protein analysis to address a significant gap in Ireland’s agricultural history.

By examining ancient remains, scientists have provided strong scientific support to efforts aimed at protecting the few remaining wild herds of this breed.

Bridging the archaeological gap

Identifying goat remains within the archaeological record has historically posed challenges for researchers. Professor Eileen Murphy of Queen’s University Belfast explains that goat bones are often overlooked because they are difficult to distinguish from those of sheep.

To address this issue, the team employed “protein fingerprinting,” called ZooMS, a technique that identifies species through microscopic traces of collagen. This method confirmed that specimens found at Haughey’s Fort—a Late Bronze Age hillfort in County Armagh dating to 1100–900 BCE—were goats. These remains are now recognized as the oldest verified goat specimens discovered in Ireland.

“Combining genetics, proteomics, and archaeological science has allowed us a glimpse of our animals hundreds and thousands of years ago,” said co-lead author Assistant Professor Kevin Daly of UCD’s School of Agriculture and Food Science.

A remarkable genetic continuity

The study compared ancient DNA from Bronze Age goats and medieval samples from Carrickfergus, County Antrim, with hundreds of modern goat genomes worldwide. The results confirmed that the ancient goats shared their strongest genetic affinity with the Old Irish Goat.

These findings indicate a 3,000-year continuity of the goat population on the island. While medieval goats exhibited more varied genetic profiles—suggesting diverse trade in skins through ports such as Carrickfergus—the core lineage persisted until the modern era.

Historically known as a Gabhar Fiáin (the wild goat), this breed was Ireland’s only goat species until about 1900. It gave small farmers nutrient-dense milk and tough hides, particularly during the Great Famine.

The research indicates that the breed’s thick cashmere undercoat and “coat of many colors” helped it survive in Ireland’s tough, marginal landscapes.

Modern threats and conservation

Despite its prehistoric resilience, the Old Irish goat now faces a serious modern threat. The study identified substantial signs of inbreeding in today’s populations, caused by a sharp decline in numbers and arrival of Swiss and British dairy breeds over the last hundred years.

“This research is a huge milestone,” said Sinead Keane of The Old Irish Goat Society. “It provides powerful scientific validation of what local communities and conservationists have long believed—that the Old Irish Goat represents a living piece of our ancient heritage.”

The findings underscore the urgency of protecting these animals. Conservationists argue that as the only indigenous breed, the Old Irish Goat holds important genetic diversity and a “biocultural heritage” that must be preserved for future generations.

The study was published in the Journal of Archaeological Science.