Southdown sheep no longer economical and smaller flocks averaged only 135 ewes apiece. The use of artificial fertilizers had gained ground, and the combine-drill, which sowed grain seeds and fertilizer together, rendered close-folding by sheep unnecessary. Gradually surrendering to basic arable farming changes, the Southdown became largely a grassland breed. During the interwar years, the United Kingdom was known for farm animal breeding, and pedigreed Southdowns were still being exported to most parts of the world, especially New Zealand. In 1937, the number of exported Southdowns reached 459 head. During the Great Depression, a severe and prolonged fall in the prices of
Breed registry the word ‘champion’ in a name, a trademark, or anything that can be mistaken for the name of another kennel or, sometimes, stable. Only after an animal has achieved a legitimate championship will some registries permit the use of the prefix "Ch." or other title before or after their registered name. Some registries may use symbols to designate the status of certain individuals. An asterisk * may be used to designate an animal born in another country and imported. A plus + may be used to designate a champion or an animal under special registration status. Breed registry A breed