Although the Coopworth is one of New Zealand's most common sheep breeds this is still a question we regularly get asked.
The Coopworth was developed through research carried out at Lincoln University in the 1960’s by Professor Ian Coop and Mr Vern Clarke. They were focused on developing a sheep with high fertility rates as this was a major concern at the time. They crossed top Border Leicester sires (a breed known for excellent mothering ability, fertility, and milk production) with Romney ewes from a range of sources across NZ. After years of continued research based on performance recordings and careful selection (culling) the Coopworth breed was born.
“We continue to collect data based on individual stud performance while still maintaining top physical soundness”
Today at The Poplars Farm we continue to collect data based on individual stud performance while still maintaining top physical soundness. Our key traits for selection include: number of lambs born and weaned, growth, meat yield, and FE tolerance. Physical traits include sound teeth, jaws, and feet as well as robust constitution.
http://coopworthgenetics.co.nz/page.php?page=Breed%20Origins