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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Columbia sheep ： ウィキペディア英語版 Columbia sheep The''Columbia'' is one of the first breeds of sheep developed in the United States. The product of USDA and university research, it was intended to be an improved breed specially built for the Western ranges of the country (where the majority of sheep raising takes place).〔 Beginning in 1912 in Laramie, Wyoming, Lincoln rams were crossed with Rambouillet ewes.〔 〕 In 1918, the foundation flock was moved to the U.S. Sheep Experiment Station near Dubois, Idaho, for further refinement. Today's Columbia is a popular breed, with heavy, white fleeces and good growth characteristics. It is one of the larger breeds, and is often used for cross breeding in commercial western flocks. ==Characteristics== Adult rams weigh between , while females weigh between . An average fleece from an ewe weighs from with a yield of 45 to 55%. The staple length of the wool ranges from . The wool is classified as medium wool with a spin count of 50s to 60s. The wool varies from 31.0 to 24.0 microns.〔 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「Columbia sheep」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.