Corriedale wool ranging from 25 to 30 microns diameter. Fleece from a mature ewe will weigh with a staple length of . After cleaning, a yield of 50 to 60% of the raw fleece weight is common. Mature rams will weigh ; ewes can weigh from . This breed was developed in Australia and New Zealand by extensive breeding and culling as a cross between Merino and Lincoln sheep The goal was to develop a breed that would thrive in lower rainfall areas and supply long-staple wool. James Little was the original breeder. The name comes from a property in the
Breed registry are seen in certain color breeds of horses, such as the Appaloosa, American Paint Horse, and American Cream Draft Horse, where foals with the proper pedigree for registration but do not meet the color standard for the breed, yet may still carry the necessary genetics in a minimally-expressed form, may be registered and bred to fully registered animals, with ensuing offspring eligible for registration if they meet the breed standard. Another form of open registry is a registry based on performance or conformation, called in some societies "Registry on Merit." In such registries, an eligible animal that meets certain criteria