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学科主题: Reproductive Biology; Veterinary Sciences
题名: B-Mode ultrasonographic evaluation of the testis in relation to serum testosterone concentration in male Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) during the breeding season
作者: Wu, H. -P.1, 2; Hao, Y. -J.1; Li, X.3; Zhao, Q. -Z.1; Chen, D. -Q.1; Kuang, X. -A.1; Kou, Z. -B.1; Feng, K. -K.1; Gong, W. -M.1; Wang, D.1
通讯作者: Hao, YJ, Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
关键词: Pixel intensity ; Testis volume ; Testosterone ; Ultrasonography ; Yangtze finless porpoise
刊名: THERIOGENOLOGY
发表日期: 2010-02-01
DOI: 10.1016/j.theriogenology.2009.09.022
卷: 73, 期:3, 页:383-391
收录类别: SCI
文章类型: Article
部门归属: [Wu, H. -P.; Hao, Y. -J.; Zhao, Q. -Z.; Chen, D. -Q.; Kuang, X. -A.; Kou, Z. -B.; Feng, K. -K.; Gong, W. -M.; Wang, D.] Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China; [Wu, H. -P.] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China; [Li, X.] Wuhan Univ, ZhongNan Hosp, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Basic Research Program of China [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: The use of ultrasonography as a noninvasive tool for assessing the reproductive status of the male Yangtze finless porpoise (YFP; Neophocaena phocaenoides asiaeorientalis) was validated by correlating ultrasonographically determined testicular volume (TV) and testicular parenchyma pixel intensity (PI) with serum testosterone (T) concentration. The testes of 13 free-ranging male YFPs from the Tian-e-Zhou Reserve and three captive animals from the Baiji Dolphinarium (Wuhan, China) were examined ultrasonographically during April 2008. Testis volume was determined using Lambert's formula for an ellipsoid. Testicular parenchyma PI was evaluated by analyzing testicular ultrasonograms using pixel analysis software (Image J). Serum T concentrations were determined using a single-antibody radioimmunoassay. The TV, PI, and serum T concentration were low and similar in animals with body length <133 cm, highest in those with body length >= 142 cm, and highly variable in those with body length from 133 to 141 cm. Both TV and PI were closely correlated with serum T concentration (r = 0.91 and r = 0.85, respectively; P < 0.01), indicating a consistent association between structural and functional development of the testis. In conclusion, we inferred that puberty onset in male YFPs occurred when TV was >150 cm(3) and PI was >60 during the breeding season and that testicular ultrasonography and pixel analysis was an efficient, noninvasive, real-time tool to evaluate testicular function of live male YFPs. (C) 2010 Elsevier Inc. All rights reserved.
英文摘要: The use of ultrasonography as a noninvasive tool for assessing the reproductive status of the male Yangtze finless porpoise (YFP; Neophocaena phocaenoides asiaeorientalis) was validated by correlating ultrasonographically determined testicular volume (TV) and testicular parenchyma pixel intensity (PI) with serum testosterone (T) concentration. The testes of 13 free-ranging male YFPs from the Tian-e-Zhou Reserve and three captive animals from the Baiji Dolphinarium (Wuhan, China) were examined ultrasonographically during April 2008. Testis volume was determined using Lambert's formula for an ellipsoid. Testicular parenchyma PI was evaluated by analyzing testicular ultrasonograms using pixel analysis software (Image J). Serum T concentrations were determined using a single-antibody radioimmunoassay. The TV, PI, and serum T concentration were low and similar in animals with body length <133 cm, highest in those with body length >= 142 cm, and highly variable in those with body length from 133 to 141 cm. Both TV and PI were closely correlated with serum T concentration (r = 0.91 and r = 0.85, respectively; P < 0.01), indicating a consistent association between structural and functional development of the testis. In conclusion, we inferred that puberty onset in male YFPs occurred when TV was >150 cm(3) and PI was >60 during the breeding season and that testicular ultrasonography and pixel analysis was an efficient, noninvasive, real-time tool to evaluate testicular function of live male YFPs. (C) 2010 Elsevier Inc. All rights reserved.
关键词[WOS]: BOTTLE-NOSED-DOLPHIN ; TURSIOPS-TRUNCATUS-ADUNCAS ; OVULATION INDUCTION ; REPRODUCTIVE-TRACT ; GONADOTROPINS ; MARES
语种: 英语
WOS记录号: WOS:000276750100012
ISSN号: 0093-691X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13487
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, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
3.Wuhan Univ, ZhongNan Hosp, Wuhan 430072, Peoples R China

Recommended Citation:
Wu, H. -P.; Hao, Y. -J.; Li, X.; Zhao, Q. -Z.; Chen, D. -Q.; Kuang, X. -A.; Kou, Z. -B.; Feng, K. -K.; Gong, W. -M.; Wang, D..B-Mode ultrasonographic evaluation of the testis in relation to serum testosterone concentration in male Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) during the breeding season,THERIOGENOLOGY,2010,73(3):383-391
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