How a hardy English sheep became the backbone of New Zealand's global meat trade

Nature · Published 3 October 2026 Swipe more like this →

In short: Originating in the damp pastures of Kent, the Romney sheep transformed New Zealand into an agricultural powerhouse. Renowned for their resilience against foot rot and their heavy, strong-fibered fleeces, these animals supplanted local breeds to dominate the national flock, eventually fueling a multi-billion dollar export industry of meat and wool.

The Romney breed, historically known as the Kent, emerged from medieval longwool types and was refined in England by the 1800s. Its global expansion began in earnest in 1853, when the first shipment of 20 sheep arrived in New Zealand. By 1860, Alfred Ludlum had established the country's first stud in the Hutt Valley. The breed proved exceptionally well-suited to the local environment, rapidly displacing the Merino population that had numbered 60,000 in 1855. By 1965, the Romney accounted for three-quarters of New Zealand's national flock, cementing its status as the country's primary agricultural asset.

Beyond their adaptability, Romneys are prized for their resistance to common pastoral ailments like foot rot and liver flukes. While early observers like Henry Fell questioned their prolificacy, modern New Zealand flocks have achieved lambing rates exceeding 1.7 per ewe, proving the breed's capacity for high performance under intensive management. Their fleece is equally distinctive; as a 'strong-wool' breed, Romneys produce fibers with a high average diameter, making them ideal for carpets and rugs rather than fine apparel. This heavy, high-yield fleece—often exceeding 5 kg for ewes and 10 kg for rams—drives a significant portion of New Zealand's export economy.

The economic impact of the Romney is difficult to overstate. In 2008, sheep-meat exports, largely driven by Romney genetics, generated over NZ$2.25 billion, representing more than half of the nation's total meat export revenue. Furthermore, New Zealand remains the world's largest exporter of strong crossbred wool. While the breed faces ongoing debates regarding ideal body size and the standardization of fiber measurements, its role in global supply chains—from the rug factories of China to the frozen lamb markets of London—remains a testament to the success of selective breeding and international agricultural migration.

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