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Nose ring (animal)
A nose ring is a ring made of metal designed to be installed through the nasal septum of domestic cattle, usually bulls. Nose rings are often required for bulls when exhibited at agricultural shows. There also is a clip-on ring design used for controlling other cattle for showing or handling. Nose rings are also used to prevent pigs rooting, and to encourage the weaning of young calves and other livestock by discouraging them from suckling.
==History==
Historically, the use of nose rings for controlling animals dates to the dawn of recorded civilization. They were used in ancient Sumer and are seen on the Standard of Ur, where they were used on both draught cattle and equines.〔Calvin W. Schwabe, 'Cattle, Priests and Medicine', Vol.4, at p. 16 (U. of Minn. 1978), ISBN 0-8166-0825-3〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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