Maui Milk and dairy sheep pioneer Waituhi Kuratau Trust milk 5000 sheep twice daily.
Mr Gatley, with 20-plus years' experience in livestock improvement methods involving genetics, has travelled extensively researching sheep breeds and their potential contribution to New Zealand's fledging industry.
The Awassi from Israel, known for its hardiness and ability to resist dramatic temperature swings, along with the Lacaune, a high-yielding milk breed from France, were identified for mixing with the existing East Friesian that was in need of some fresh genetics to boost the gene pool. The result was a world-first sheep milking breed, named Southern Cross.
"We looked at the characteristics of the various breeds and gained access to the semen we wanted. Over time and different lambing seasons we worked towards creating a milking ewe that would be suited to New Zealand's conditions. The relevant traits that we were searching for included milk volume, temperament, longevity," Mr Gatley said.
The benefits of sheep's milk include having 45 per cent more protein than dairy. The milk can be digested more rapidly and can be an alternative for those who have trouble digesting cow milk. Because sheep have a much lower level of nitrogen leaching than cattle, the nitrogen discharge allowances run at about 15kg/N ha in contrast to dairy farms' 40+kg/N ha.
The sheep produce milk as yearlings rather than two year olds, they typically have more than one lamb and milking can be quicker as milk let-down is rapid. These provide a cost efficient return on investment — an important consideration when most of the milking technology needs to be imported.
"New Zealand expertise in both sheep farming and pastoral dairying are being combined to deliver on the potential, and the first job is to breed the sheep. If this is delayed, no amount of money can turn back the clock."