A Surge-Like Increase in Luteinizing Hormone Preceding Musth in a Captive Bull African Elephant (Loxodonta africana)
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- KAEWMANEE Saroch
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- WATANABE Gen
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- KEIO Megumi
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- YAMAMOTO Yuki
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- YAMAMOTO Tatsuya
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- KISHIMOTO Miori
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- NAGAOKA Kentaro
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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- NARUSHIMA Etsuo
- Tama Zoological Park
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- KATAYANAGI Masayuki
- Tama Zoological Park
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- NAKAO Risa
- Tama Zoological Park
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- SAKURAI Yuko
- Tama Zoological Park
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- MORIKUBO Shu
- Tama Zoological Park
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- KANEKO Mikako
- Tama Zoological Park
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- YOSHIHARA Masato
- Tama Zoological Park
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- YABE Tomoko
- Tama Zoological Park
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- TAYA Kazuyoshi
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology
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Abstract
This study was conducted to determine the correlation between reproductive hormones and musth in a male African elephant. Changes in circulating luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone and immunoreactive (ir-) inhibin and the degree of musth were evaluated for 4 years. LH increased 4 weeks before musth began. The highest concentrations of testosterone and ir-inhibin were observed from April to October. There were positive correlations among testosterone, ir-inhibin and musth behavior. These findings suggested that the surge-like LH in the pre-musth period might stimulate secretion of testosterone and ir-inhibin and thus initiate the musth behavior. This study also suggested that the high LH level before musth might be a useful biomarker for the beginning of the musth season.<br>
Journal
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- Journal of Veterinary Medical Science
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Journal of Veterinary Medical Science 73 (3), 379-383, 2011
JAPANESE SOCIETY OF VETERINARY SCIENCE
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Details 詳細情報について
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- CRID
- 1390282681405013760
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- NII Article ID
- 130000444299
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- NII Book ID
- AA10796138
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- ISSN
- 13477439
- 09167250
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- NDL BIB ID
- 11062288
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed