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学科主题: Reproductive Biology; Veterinary Sciences
题名: Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): motivated by physiological changes?
作者: Wu, Hai-Ping1, 2; Hao, Yu-Jiang1; Yu, Xue-Ying1, 2; Xian, Yi-Jie1, 2; Zhao, Qing-Zhong1; Chen, Dao-Quan1; Kuang, Xin-An1; Kou, Zhang-Bin1; Feng, Kang-Kang1; Gong, Wei-Ming1; Wang, Ding1
通讯作者: Hao, YJ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: Yangtze finless porpoise ; Sexual behavior ; Testicular volume ; Testicular pixel intensity ; Testosterone
刊名: THERIOGENOLOGY
发表日期: 2010-11-01
DOI: 10.1016/j.theriogenology.2010.06.018
卷: 74, 期:8, 页:1467-1475
收录类别: SCI
文章类型: Article
部门归属: [Wu, Hai-Ping; Hao, Yu-Jiang; Yu, Xue-Ying; Xian, Yi-Jie; Zhao, Qing-Zhong; Chen, Dao-Quan; Kuang, Xin-An; Kou, Zhang-Bin; Feng, Kang-Kang; Gong, Wei-Ming; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wu, Hai-Ping; Yu, Xue-Ying; Xian, Yi-Jie] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018]
类目[WOS]: Reproductive Biology ; Veterinary Sciences
研究领域[WOS]: Reproductive Biology ; Veterinary Sciences
摘要: Most male mammals in temperate regions demonstrate seasonal sexual behaviors that coincide with seasonal variations in gonadal activities and androgen hormones. The Yangtze finless porpoise is a temperate freshwater cetacean species and an obvious seasonal breeder. To investigate the relationship between sexual behavior and gonadal activity in this animal, testicular size (volume) and structure (ultrasonogram pixel intensity) of two adult male porpoises (AF, AB) and one sub-adult male (TT) were longitudinally monitored from November 2008 to November 2009. Serum testosterone concentration was also monitored during the same period. Variations in the frequency of sexual behavior in AF and AB had similar, but seasonal trends. Their testicular size and pixel intensity also varied seasonally. Testicular size increased in March, peaked from April through June, and decreased gradually from August through September, whereas testicular pixel intensity started to increase in early February. The frequency of sexual behavior was positively correlated with testicular volume and pixel intensity (P = 0.000018 and P = 0.00012, respectively) in AF. Serum testosterone concentrations also varied. The sub-adult male porpoise, TT, was undergoing puberty, as evidenced by its marked increase in testicular volume, testicular pixel intensity, and serum testosterone concentrations from the beginning of 2009. Interestingly, TT exhibited the highest frequency of sexual behavior, most of which was same-sex pairing. However, its oversexed behavior neither quantitatively correlated with its smaller testicular volume (P = 0.61) nor with its testicular pixel intensity (P = 0.69). (C) 2010 Elsevier Inc. All rights reserved.
英文摘要: Most male mammals in temperate regions demonstrate seasonal sexual behaviors that coincide with seasonal variations in gonadal activities and androgen hormones. The Yangtze finless porpoise is a temperate freshwater cetacean species and an obvious seasonal breeder. To investigate the relationship between sexual behavior and gonadal activity in this animal, testicular size (volume) and structure (ultrasonogram pixel intensity) of two adult male porpoises (AF, AB) and one sub-adult male (TT) were longitudinally monitored from November 2008 to November 2009. Serum testosterone concentration was also monitored during the same period. Variations in the frequency of sexual behavior in AF and AB had similar, but seasonal trends. Their testicular size and pixel intensity also varied seasonally. Testicular size increased in March, peaked from April through June, and decreased gradually from August through September, whereas testicular pixel intensity started to increase in early February. The frequency of sexual behavior was positively correlated with testicular volume and pixel intensity (P = 0.000018 and P = 0.00012, respectively) in AF. Serum testosterone concentrations also varied. The sub-adult male porpoise, TT, was undergoing puberty, as evidenced by its marked increase in testicular volume, testicular pixel intensity, and serum testosterone concentrations from the beginning of 2009. Interestingly, TT exhibited the highest frequency of sexual behavior, most of which was same-sex pairing. However, its oversexed behavior neither quantitatively correlated with its smaller testicular volume (P = 0.61) nor with its testicular pixel intensity (P = 0.69). (C) 2010 Elsevier Inc. All rights reserved.
关键词[WOS]: SEASONAL-VARIATION ; BREEDING ACTIVITY ; TESTOSTERONE ; RAMS ; HISTOLOGY ; HORMONES ; DOLPHIN ; TESTES
语种: 英语
WOS记录号: WOS:000283265000018
ISSN号: 0093-691X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13457
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Wu, Hai-Ping; Hao, Yu-Jiang; Yu, Xue-Ying; Xian, Yi-Jie; Zhao, Qing-Zhong; Chen, Dao-Quan; Kuang, Xin-An; Kou, Zhang-Bin; Feng, Kang-Kang; Gong, Wei-Ming; Wang, Ding.Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): motivated by physiological changes?,THERIOGENOLOGY,2010,74(8):1467-1475
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