As a breed, the Welsh Mountain Sheep is perfectly adapted to thrive in the difficult conditions of upland Wales; however they are also well suited to live on lowland areas. Those farming lowland areas can also benefit from the excellent qualities of the breed by purchasing Welsh Mountain ewes to cross with other breeds such as the Texel, Suffolk or Charollais to produce finished lambs of high quality, meeting the high standards and requirements of a demanding market, maintaining the reputation of Welsh Mountain Lamb for producing delicious meat.
A study carried out on an upland farm in Mid Wales showed that the Welsh Mountain Sheep is able to produce strong lambs when crossed with the Texel ram. On average, the survey lambs weighed 39.5 kg at 170 days old; recorded a weight of 17.3 kg per carcass after slaughter and 84% rated ‘R’ or better. The lambs were produced from grass only, reducing the need for further feed-intensive feeding.
Welsh Mountain Sheep are long-lived and still produce lambs at a mature age. There is ample evidence, for example, of mountain sheep of five years old and more producing two Charollais cross lambs in March with a live weight of 40 kg in late June when the lambs are ready for sale.