Stress and Uterine Bacterial Flora in Diary Cows Following Clinically Normal and Abnormal Puerperium
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概要
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ACTH challenge tests for the assessment of stress on the first and third week postpartum and bacteriologic examination of uterine swabs on the second and fourth week, were conducted in dairy cows following clinically normal (n=12) and abnormal (n=21) puerperium. Postpartum ovarian activity and uterine involution were also investigated. The basal plasma cortisol concentrations (mean ± S.E.) during the first and third week postpartum were 3.1 ± 0.9 ng/ml and 3.4 ± 1.1 ng/ml in normal cows, and 6.5 ± 1.9 ng/ml and 4.9 ± 1.2 ng/ml in abnormal cows, respectively. The mean basal plasma cortisol values of abnormal cows were elevated and significantly higher (P<0.05) during the first week postpartum. Bacterial organisms were isolated from the uterus of 33.3% of normal and 61.9% of abnormal cows during the second week postpartum and in 33.3% of normal and 23.8% of abnormal cows during the fourth week. Resumption of ovarian activity was neither affected by puerperal disorders nor uterine bacterial infection. Uterine involution at 4 weeks postpartum was completed in all cows with normal puerperium and delayed in 23.8% of abnormal cows. The results indicate that cows with abnormal puerperium had significantly higher basal cortisol levels, and had higher occurrence of uterine bacterial infection during the second week when compared with normal cows.
- 日本繁殖生物学会の論文
- 1997-05-01
著者
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Nakada K
Department Of Large Animal Clinical Sciences Graduate School Of Veterinary Medicine Rakuno Gakuen Un
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Nakada Ken
Department Of Large Animal Clinical Sciences School Of Veterinary Medicine Rakuno Gakuen University
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Nakada Ken
Department Of Large Animal Clinical Sciences Graduate School Of Veterinary Medicine Rakuno Gakuen Un
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MORIYOSHI Masaharu
Department of Veterinary Obstetrics and Gynecology, School of Veterinary Medicine, Rakuno Gakuen Uni
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KAWATA Keiichiro
Department of Veterinary Obstetrics Faculty of Veterinary Medicine Hokkaido University
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NAKAO Toshihiko
Department of Veterinary Obstetrics & Gynecology, Rakuno Gakuen University
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Nakao T
Rakuno Gakuen Univ. Ebetsu Jpn
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Nakano T
Hiroshima Univ. Hiroshima Jpn
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HIRAMUNE Takashi
Department of Epizootiology, School of Veterinary Medicine, Rakuno Gakuen University
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Torres E
Department Of Veterinary Clinical Sciences College Of Veterinary Medicine University Of The Philippi
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Moriyoshi M
Department Of Large Animal Clinical Sciences Graduate School Of Veterinary Medicine Rakuno Gakuen Un
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Moriyoshi Masaharu
Department Of Veterinary Obstetrics And Gynecology Faculty Of Veterinary Medicine Rakuno Gakuen Univ
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Kawata K
Hokkaido Nosai Ebetsu Jpn
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TORRES Eduardo
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of the Philip
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Torres Eduardo
Department Of Veterinary Clinical Sciences College Of Veterinary Medicine University Of The Philippi
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Nakao Toshihiko
Department Of Veterinary Medicine Faculty Of Agriculture Yamaguchi University
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Hiramune Takashi
Department Of Epizootiology School Of Veterinary Medicine Rakuno Gakuen University
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KAWATA Keiichiro
Department of Veterinary Obstetrics and Gynecology, Rakuno Gakuen University
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Moriyoshi Masaharu
Department of Large Animal Clinical Sciences, Graduate School of Veterinary Medicine, Rakuno Gakuen University
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NAKAO Toshihiko
Department of Animal Science, Graduate School for International Development and Cooperation (IDEC), Hiroshima University
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KAWATA Keiichiro
Department of Veterinary Obstetrics and Gynecology, Faculty of Veterinary Medicine, Rakuno Gakuen University
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