A Surge-Like Increase in Luteinizing Hormone Preceding Musth in a Captive Bull African Elephant (Loxodonta africana)
スポンサーリンク
概要
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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.
著者
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Yamamoto Yuki
Department of Dermatology, Wakayama Medical University
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Watanabe Gen
Lab. Of Veterinary Physiology Dep. Of Veterinary Medicine Fac. Of Agriculture Tokyo Univ. Of Agricul
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Watanabe Gen
岐阜大学 連合獣医学研究科基礎獣医学
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Watanabe G
Laboratory Of Veterinary Physiology Department Of Veterinary Medicine Faculty Of Agriculture Tokyo U
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WATANABE Gen
Department of Basic Veterinary Sciences, The United Graduate School of Veterinary Sciences, Gifu Uni
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TAYA Kazuyoshi
Department of Basic Veterinary Sciences, The United Graduate School of Veterinary Sciences, Gifu Uni
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YAMAMOTO Tatsuya
Department of Chemical Engineering, Faculty of Engineering, Iwate University
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KEIO Megumi
Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Toky
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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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KANEKO Mikako
Tama Zoological Park
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KAEWMANEE Saroch
Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu Univ
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NAGAOKA Kentaro
Laboratory of Animal Breeding, Faculty of Agriculture, The University of Tokyo
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KISHIMOTO Miori
Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Toky
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Yamamoto Yuki
Department Of Dermatology Wakayama Medical University
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MORIKUBO Shu
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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Watanabe Gen
Department Of Basic Veterinary Science United Graduate School Of Veterinary Sciences Gifu University
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Yamamoto Tatsuya
Department Of Applied Chemistry Graduate School Of Engineering Hiroshima University
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Nagaoka Kentaro
Laboratory Of Animal Breeding Faculty Of Agriculture The University Of Tokyo
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Yamamoto Yuki
Department Of Biology Faculty Of Science Okayama University
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Taya Kazuyoshi
Department Of Basic Veterinary Science United Graduate School Of Veterinary Sciences Gifu University
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Kishimoto Miori
Laboratory Of Veterinary Physiology Department Of Veterinary Medicine Faculty Of Agriculture Tokyo U
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Yamamoto Yuki
Department Of Basic Veterinary Science The United Graduate School Of Veterinary Sciences Gifu University
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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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YAMAMOTO Yuki
Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University
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Nagaoka Kentaro
Laboratory of Animal Breeding and Reproduction, University of Tokyo
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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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