正常および卵巣子宮摘出したジャーマンシェファード犬の吠え声の音響特性(動物行動学)
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概要
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ジャーマンシェファード犬のテリトリー(縄張り)攻撃での吠え声に対する卵巣子宮摘出の影響について検討した.5∿10ヶ月齢の健康犬16頭を無作為に8頭づつ, 卵巣子宮摘出群と正常対象群の2グループに分けた.手術の4∿5ヶ月後, 見知らぬ人が見知らぬ犬を連れて接近した時の行動と吠え声を, デジタルカメラレコーダーで記録した.テリトリー攻撃が誘起された時, 卵巣子宮摘出群ではより強い攻撃性を示した.吠え声の頻度は上昇し, 卵巣子宮摘出群では平均45回, 正常群では26回であった.発声の高さは卵巣子宮摘出群で有意に低下した.吠え声の周波数を4つに分類した時のそれぞれの音響エネルギーは, 卵巣子宮摘出群において対象群よりも低い値を示した.犬における卵巣子宮摘出は攻撃発声の頻度や発声音響特性に影響を与えるかも知れない.またこのような音響解析は犬の緊張や強さを評価する上で有効な方法になるかも知れない.
- 2005-03-25
著者
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CHANG Hong
Institute of Agriculture and Life Science, Gyeongsang National University
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Yeon Seong
Institute Of Animal Medicine College Of Veterinary Medicine Gyeongsang National University
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Yeon Seong-chan
Institute Of Animal Medicine College Of Veterinary Medicine Gyeongsang National University
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KIM Hyeon
Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University
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HOUPT Katherine
Animal Behavior Clinic, College of Veterinary Medicine, Cornell University
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LEE Hee
Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University
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LEE Hyo
Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University
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Lee Hyo
Institute Of Animal Medicine College Of Veterinary Medicine Gyeongsang National University
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Kim Ha-hyun
Bio-therapy Human Resources Center College Of Veterinary Medicine Chonnam National University
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Lee Hee
Institute Of Animal Medicine College Of Veterinary Medicine Gyeongsang National University
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Chang Hong
Institute Of Animal Medicine College Of Veterinary Medicine Gyeongsang National University
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Kim Hyeon
Bio-therapy Human Resources Center College Of Veterinary Medicine Chonnam National University
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Houpt Katherine
Animal Behavior Clinic College Of Veterinary Medicine Cornell University
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Kim Hyeon-Hee
Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University
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Houpt Katherine-Albro
Animal Behavior Clinic, College of Veterinary Medicine, Cornell University
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