Fetal Age Estimation of Hokkaido Sika Deer (Cervus nippon yesoensis) Using Ultrasonography During Early Pregnancy
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概要
- 論文の詳細を見る
In sika deer, the normal method of estimating fetal age, based on fetal weight, is not applicable during the early pregnancy period. The objective of the present study was to describe the growth and development of sika deer fetuses and to establish a method for fetal age estimation during early pregnancy using ultrasonography. Five captive female Hokkaido sika deer (Cervus nippon yesoensis) were observed for estrus and mated (day 0) with an intact male. At two- or three-day intervals, fetuses were observed by rectal ultrasonographic scans until 59-61 days of gestation. The straight crown-rump length (SCRL), curved crown-rump length (CCRL), head length (HL), trunk depth (TD) and heart rate (HR) of the fetuses were measured. Linear regression equations were computed for each measurement together with fetal age. Analyses were conducted after transformation to a natural logarithm for SCRL and CCRL. All equations were significant (P<0.001), with SCRL becoming measurable earlier (day 20) than the others and yielding the best correlation (Days=-2.08+14.15 LnX: X=SCRL, Ln=natural logarithm). Therefore, we concluded that a precise estimation of fetal age in early gestation is best performed using SCRL measurements.
- 2009-04-01
著者
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坪田 敏男
北海道大学大学院獣医学研究科生態学教室
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坪田 敏男
岐阜大学農学部家畜臨床繁殖学講座
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KATAGIRI Seiji
Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterin
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TAKAHASHI Yoshiyuki
Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterin
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TSUBOTA Toshio
岐阜大学農学部
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TSUBOTA Toshio
Laboratory of Wildlife Biology, Graduate School of Veterinary Medicine, Hokkaido University
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YANAGAWA Yojiro
Laboratory of Wildlife Biology, Graduate School of Veterinary Medicine, Hokkaido University
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MATSUURA Yukiko
Field Science Center for Northern Biosphere, Hokkaido University
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SUZUKI Masatsugu
Laboratory of Zoo and Wildlife Medicine, Department of Veterinary Medicine, Faculty of Applied Biolo
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SAGA Shin-ichi
Asahiyama Zoological Park
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OKUYAMA Hideto
Asahiyama Zoological Park
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FUKUI Daisuke
Asahiyama Zoological Park
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BANDOU Gen
Asahiyama Zoological Park
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Katagiri Seiji
Laboratory Of Theriogenology Graduate School Of Veterinary Medicine Hokkaido University
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坪田 敏男
兵庫県森林動物研究センター
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坪田 敏男
岐阜大学 農
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坪田 敏男
岐阜大学農学部
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Tsubota Toshio
Laboratory Of Wildlife Biology Graduate School Of Veterinary Medicine Hokkaido University
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Yanagawa Yojiro
Laboratory Of Wildlife Biology Graduate School Of Veterinary Medicine Hokkaido University
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Matsuura Yukiko
Field Science Center For Northern Biosphere Hokkaido University
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Matsuura Yukiko
北海道大学 獣医学研究科
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Matsuura Yukiko
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Science Graduate School Of Vet
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Suzuki Masatsugu
北海道大学 獣医学研究科野生動物学
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坪田 敏男
北海道大学大学院獣医学研究科
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Tsubota Toshio
Department Of Environmental Veterinary Science Graduate School Of Veterinary Medicine Hokkaido Unive
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Katagiri Seiji
Laboratory Of Theriogenology Department Of Clinical Sciences Graduate School Of Veterinary Medicine
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Sasaki Motoki
Laboratory Of Veterinary Anatomy Department Of Basic Veterinary Medicine Obihiro University Of Agric
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Tsubota T
Department Of Environmental Veterinary Science Graduate School Of Veterinary Medicine Hokkaido Unive
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Tsubota Toshio
Laboratory Of Ecology Department Of Environmental Veterinary Sciences Graduate School Of Veterinary
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Tsubota Toshio
Faculty Of Agriculture Gifu University
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Tsubota Toshio
Division Of Veterinary Medicine Faculty Of Agriculture Gifu University
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Tsubota Toshio
Laboratory Of Theriogenology Faculty Of Agriculture Gifu University
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Tsubota Toshio
Department Of Theriogenology Faculty Of Agriculture Gifu University
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Tsubota Toshio
United Graduate School Of Veterinary Medicine Gifu University
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坪田 敏男
岐阜大学農学部獣医学科 : 岐阜大学大学院連合獣医学研究科
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坪田 敏男
岐阜大学 大学院連合獣医学研究科
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Matsuura Yukiko
Graduate School Of Veterinary Medicine Hokkaido University
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Suzuki Masatsugu
Graduate School Of Veterinary Medicine Hokkaido University
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Suzuki Masatsugu
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Science Graduate School Of Vet
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Suzuki Masatsugu
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Sciences The Graduate School O
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Matsuzaki S
Genetics Hokkaido Inc. Hokkaido
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Sasaki M
Laboratory Of Veterinary Anatomy Department Of Basic Veterinary Medicine Obihiro University Of Agric
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Matoba Y
Department Of Parasitology (wildlife Zoology) School Of Veterinary Medicine Rakuno Gakuen University
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Fukui Daisuke
Asahikawa Asahiyama Zoological Park And Wildlife Conservation Center
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Tsubota Toshio
Department Of Veterinary Obstetrics Faculty Of Veterinary Medicine Hokkaido University
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Suzuki M
Hokkaido Univ. Sapporo Jpn
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Tsubota Toshio
Department Of Basic Veterinary Science The United Graduate School Of Veterinary Sciences Gifu Univer
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Takahashi Yoshiyuki
Laboratory Of Theriogenology Department Of Veterinary Clinical Sciences Graduate School Of Veterinar
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Suzuki M
Gunma Univ. School Of Medicine Maebashi Jpn
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Tsubota Toshio
Laboratory Of Zoo And Wildlife Medicine Gifu University
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Takahashi Yoshiyuki
Laboratory Of Theriogenology Graduate School Of Veterinary Medicine Hokkaido University
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Sasaki Motoki
Laboratory Of Veterinary Anatomy Department Of Basic Veterinary Medicine Obihiro University Of Agric
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Sasaki Motoki
Laboratory Of Anatomy Obihiro University Of Agriculture And Veterinary Medicine
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YANAGAWA Yojiro
Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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