|
An oranda is a breed of goldfish characterized by a prominent bubble-like "hood" on the head. The headgrowth or hood (also known as ''wen'') may be a prominent growth on the top of the head (cranial region) or may encase the whole head except for the eyes and mouth.〔(BAS: Oranda )〕〔Andrews, Chris. An Interpet Guide to Fancy Goldfish, Interpet Publishing, 2002. - ISBN 1-902389-64-6〕〔Johnson, Dr. Erik L., D.V.M. and Richard E. Hess. Fancy Goldfish: A Complete Guide to Care and Collecting, Weatherhill, Shambala Publications, Inc., 2006. - ISBN 0-8348-0448-4〕 When it was first imported from China to Japan it was mistakenly thought to be native to Holland, and was therefore dubbed the "Dutch Ironmask" (オランダ獅子頭), from which its English name "oranda" derives. ==Description== Due to the fleshy outgrowth on the upper half of its head and sides of its face, the oranda has become one of the most popular goldfish. The headgrowth is described as a 'wen' by Chinese aquarists. The oranda is a metallic or matte scaled goldfish that is similar in appearance to the veiltail. It has a large, long and deep body accompanied by a long quadruple tail. This four-lobed and contracted tail normally spreads out broadly when the oranda stops swimming. The back does not rise up to form a ryukin-like hump.〔〔 Orandas are available in a variety of colors, most often orange, red, red-and-white, red-and-black, black, blue, chocolate, bronze, white or silver, black-and-white (panda-colored), red-black-and-white (tricolor), and calico colors.〔( Koko's Goldfish World: Oranda, KokosGoldfishWorld.com ), retrieved on: 3 June 2007.〕〔〔 The headgrowth of young fry may take one to two years to develop.〔〔 The oranda can reach 20 to 31 centimeters (8 to 12 inches) in length.〔〔 Sometimes the wen grows enormously covering the eyes of the goldfish. Due to this, the eyesight may become limited or even blind. Special care should be given to the wen because it is prone to bacterial infections. The Oranda can tolerate temperatures from 17-28°C (65-80+°F).More recently blue scale oranda have been developed but these fish are very rare.〔(Free Information Keeping Oranda Goldfish )〕 Oranda goldfish are especially sensitive to cold temperatures, more so than other goldfish. 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「oranda」の詳細全文を読む スポンサード リンク
|