IHB OpenIR  > 水生生物多样性与资源保护研究中心  > 期刊论文
Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): motivated by physiological changes?
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; Hao, YJ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2010
Source PublicationTHERIOGENOLOGY
ISSN0093-691X
Volume74Issue:8Pages:1467-1475
AbstractMost 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.
KeywordYangtze Finless Porpoise Sexual Behavior Testicular Volume Testicular Pixel Intensity Testosterone
Department[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
Subject AreaReproductive Biology ; Veterinary Sciences
Funding OrganizationNational Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018]
Indexed BySCI
Language英语
WOS IDWOS:000283265000018
Funding OrganizationNational Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [973, 2007CB411600]; National Natural Science Foundation of China [30730018]
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13457
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorHao, YJ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Wu, Hai-Ping,Hao, Yu-Jiang,Yu, Xue-Ying,et al. Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): motivated by physiological changes?[J]. THERIOGENOLOGY,2010,74(8):1467-1475.
APA Wu, Hai-Ping.,Hao, Yu-Jiang.,Yu, Xue-Ying.,Xian, Yi-Jie.,Zhao, Qing-Zhong.,...&Hao, YJ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2010).Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): motivated by physiological changes?.THERIOGENOLOGY,74(8),1467-1475.
MLA Wu, Hai-Ping,et al."Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): motivated by physiological changes?".THERIOGENOLOGY 74.8(2010):1467-1475.
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