The market requires carcases of 18-22 kg, meaning lamb weights of 40-48 kg.
Production economics, on the other hand, require the maximum yield of lamb per acre.
For many years, the Lleyn Sheep Society's message has been that the way to achieve the best commercial results is to use the medium sized, very milky Lleyn ewe lambing at 170-200% and stocked at a rate of 3 (instead of 2 Mules) per acre. Whether bred pure or put to a terminal sire, the Lleyn ewe gives maximum output with minimal input.
Since we established the Roseland Flock in 1995, our aim has been to produce medium-sized ewes (70-75 kg as shearlings) which have tight skins/good wool, length and conformation, and which perform really well.
We select year-after-year for maternal performance - ease of lambing, mothering ability and milkiness / lamb growth while maintaining a flock lambing % reasonably close to 200%.