Corriedale Australia. Corriedale Corriedale sheep are a dual purpose breed, meaning they are used both in the production of wool and meat. The Corriedale is the oldest of all the crossbred breeds, a Merino-Lincoln cross developed almost simultaneously in Australia and New Zealand and first brought to the United States in 1914. The Corriedale is internationally farmed, in Australia, New Zealand, the United States of America, Southern Brazil, Uruguay and Patagonia. Corriedales are one of the most popular sheep breeds in Uruguay. On the Falkland Islands, Polwarth and Corriedale form the main sheep breeds. Corriedale have a long life span, and
Breed registry conformation shows. For the breed to move to the Miscellaneous class and then to fully recognized status, the breed's stud book must be closed. A closed stud book allows the breed to stay very pure to its type, but limits its ability to be improved. This may put a breed at a disadvantage, especially in performance disciplines, where an animal is worth more if it is successful in competition even if it is not pure. It also limits the gene pool, which may make certain undesirable characteristics become accentuated in the breed, such as a poor conformational fault or a