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The Shorthorn breed of cattle originated in the North East of England in the late 18th century. The breed was developed as dual-purpose, suitable for both dairy and beef production; however, certain blood lines within the breed always emphasised one quality or the other. Over time, these different lines diverged, and by the second half of the 20th century, two separate breeds had developed – the Beef Shorthorn, and the Milking Shorthorn. All Shorthorn cattle are coloured red, white, or roan, although roan cattle are preferred by some, and completely white animals are not common. However, one type of Shorthorn has been bred to be consistently white – the Whitebred Shorthorn, which was developed to cross with black Galloway cattle to produce a popular blue roan crossbreed, the Blue Grey. ==History== The breed developed from Teeswater and Durham cattle found originally in the North East of England. In the late 18th century, the Colling brothers, Charles and Robert, started to improve the Durham cattle using the selective breeding techniques that Robert Bakewell had used successfully on Longhorn cattle. In 1796, Charles Colling of Ketton Hall, bred the famous Durham Ox.〔Friend, John B., ''Cattle of the World'', Blandford Press, Dorset, 1978, ISBN 0-7137-0856-5〕 The culmination of this breeding program was the birth of the bull Comet, bred by Charles Colling, in 1804. This bull was subsequently sold for 1,000 guineas in 1810 at the Brafferton sale, the first 1,000-guinea bull ever recorded. Related cattle may have been imported to the United States by Harry Dorsey Gough of Baltimore, Maryland, before 1808.〔Goff, Phillip. ''The Four Goff Brothers of West Virginia: A New Perspective on Their Lives'', (pp. 65 ff ). Masthof (Morgantown), 2003. Accessed 20 October 2013.〕 At the same time, Thomas Bates of Kirklevington and John Booth of Killesby were developing the Teeswater cattle. The Bates cattle were subsequently developed for their milking qualities, whereas the Booth cattle were developed for their beef qualities. Animals taken to Scotland in 1817 from the Booth herd were used to produce the Beef Shorthorn breed.〔 In 1822, George Coates published the first volume of his herd book; this was the first pedigree herd book for cattle in the world.〔Beef Breeders' Annual, An Inverell Times supplement, Shorthorn breed arrived with the First Fleet, July 2008〕 Coates published the first four volumes, after which Henry Stafford took over the ownership and publishing of the herd book, retaining the name ''Coates's Herd Book''. The Shorthorn Society of Great Britain and Ireland was founded in 1874, and purchased the copyright of the herd book from Stafford. They have continued to compile and publish ''Coates's Herd Book'' ever since. The ''American Shorthorn Herd Book'' was the first to be published in the United States for any breed and was started in 1846, with the formation of the American Shorthorn Association following 26 years later in 1872. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「shorthorn」の詳細全文を読む スポンサード リンク
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