Corriedale South Island, where he conducted his work under the encouragement of NZALC superindent, William Soltau Davidson. The breed was developed between 1868 and 1910. As a dual purpose breed of sheep (good for meat and wool), the Corriedale breed was gradually distributed to many of the sheep-raising areas in the world. For example, the first Corriedales were imported to the United States in 1914. The Corriedale was later used as one of the parents of the U.S.-developed Targhee breed. Corriedale sheep also contribute about 50 percent of the genetics used in the Gromark breed of sheep, which were developed in
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