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题名: Effect of Photoperiod Extension on the Testicular Sonographic Appearance and Sexual Behavior of Captive Yangtze Finless porpoise (Neophocaena asiaeorientalis asiaeorientalis)
作者: Yu, Xueying1, 2; Hao, Yujiang1, 4; Kot, Brian C. W.3; Wang, Ding1
关键词: Photoperiod ; Seasonal reproduction ; Testicular changes ; Ultrasonography ; Sexual behavior ; Yangtze finless porpoise
刊名: ZOOLOGICAL STUDIES
发表日期: 2016
DOI: 10.6620/ZS.2016.55-24
卷: 55
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Zoology
研究领域[WOS]: Zoology
英文摘要: Xueying Yu, Yujiang Hao, Brian CW Kot, and Ding Wang (2016) Photoperiod plays an important role in the seasonal regulation of reproduction in mammals. In the present study, we examined the effect of an extended photoperiod (light/dark: 14 h/10 h) during the usual sexually inactive phase (Jan-Mar) on testicular sonographic appearance and sexual behaviors of two captive Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis, YFP). During the extended photoperiod treatment, the parenchyma pixel intensity, crosssectional area of testicular sonographic images, as well as the frequency of sexual behaviors of the two male porpoises increased significantly compared to the control treatment. Parenchyma pixel intensity, the crosssectional area of testicular sonographic images and the frequency of sexual behaviors of the two captive males all increased in response to extended photoperiod. These results may suggest that photoperiod is a potent factor regulating the reproductive seasonality in YFPs.
关键词[WOS]: HAMSTER PHODOPUS-SUNGORUS ; BOTTLE-NOSED-DOLPHIN ; NORTHERN FUR SEALS ; PHOCAENOIDES-ASIAEORIENTALIS ; SEMINAL CHARACTERISTICS ; ARTIFICIAL PHOTOPERIOD ; REPRODUCTIVE-CYCLES ; LUTEINIZING-HORMONE ; TURSIOPS-TRUNCATUS ; SEASONAL-CHANGES
语种: 英语
项目资助者: Innovation Program of Chinese Academy of Sciences(KSCX2EW-Z-4) ; Experimental Platform Program of Chinese Academy of Sciences(CZBZX-1)
WOS记录号: WOS:000399617200024
ISSN号: 1021-5506
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/29213
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, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China
2.Qinzhou Univ, Coll Ocean, Qinzhou, Peoples R China
3.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China
4.Chinese Acad Sci, Inst Hydrobiol, 7th South Donghu Rd, Wuhan 430072, Peoples R China
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