Effective Oxytocin Treatment on Placental Expulsion after Foaling in Heavy Draft Mares(Theriogenology)

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概要

• 論文の詳細を見る

• The aim of this study was to establish the effectiveness of administration of oxytocin (OT) on placental expulsion after foaling. Four foaling mares with the placentas retained for up 1hr after foaling received OT (50IU) administration at 1hr intervals before expulsion of the placenta. The changes in the plasma concentrations of OT and the PGF2alpha metabolite (PGFM) were investigated, and the influence of OT administration was considered. The results were as follows. The placenta was expelled after one to three OT administrations in all four mares that received OT. In two mares, which expelled the placenta within 30min after OT administration, the OT concentration increased and remained high. Expulsion of the placenta was delayed in two mares, and one of these mares, which received three doses of OT beginning 1hr after foaling, showed only a small increase in the OT concentration after the first administration; the other mare did not receive OT until 3hr after foaling. The OT concentration was increased before placental expulsion in all the mares, and the PGFM concentration also increased in the two mares with retained placentas. In conclusion, we suggest that intramuscular administration of 50IU of OT at 1-hr intervals beginning 1hr after foaling is effective for inducing placental expulsion.

• 社団法人日本獣医学会の論文
• 2009-03-25

著者

• Yamanoi Takahiro

  Hokkai-Gakuen University

• 宮本 明夫

  帯広畜産大学畜産学部

• Acosta Tomas

  Lab. Of Reproductive Endocrinology Graduate School Of Natural Sci. And Technol. Okayama Univ.

• アコスタ トマスj

  帯広畜産大学・畜産管理学科

• 小林 修一

  帯広畜産大学・畜産科学科・生殖科学研究室

• Miyamoto Akio

  Graduate School Of Animal And Food Hygiene Obihiro University Of Agriculture And Veterinary Medicine

• 宮本 明夫

  帯広畜産大

• MIYAKE Yoh-Ichi

  Department of Veterinary Medicine, Obihiro University

• Acosta Tomas

  Obihiro University Of Agriculture And Veterinary Medicine

• Acosta Tomas

  Graduate School Of Natural Science And Technology Okayama University

• Miyamoto Akio

  Obihiro University Of Agriculture And Veterinary Medicine

• Ishii Mitsuo

  Obihiro University Of Agriculture And Veterinary Medicine

• Ishii Mitsuo

  Department Of Applied Veterinary Medicine Obihiro University Of Agriculture And Veterinary Medicine

• Matsui Motozumi

  Lab. Of Theriogenology Dep. Of Applied Veterinary Medicine Obihiro Univ. Of Agriculture And Veterina

• KOBAYASHI Syuichi

  Obihiro University of Agriculture and Veterinary Medicine

• MIKI Wataru

  Hokkaido NOSAI

• MATSUI Motozumi

  Obihiro University of Agriculture and Veterinary Medicine

• MIYAKE Yoh-Ichi

  Obihiro University of Agriculture and Veterinary Medicine

• 三宅 陽一

  岩手大学 農学部家畜繁殖学研究室

• Miyake Yoh‐ichi

  Obihiro Univ. Agriculture And Veterinary Medicine Hokkaido

• Miyake Y

  Laboratory Of Theriogenology Faculty Of Agriculture Iwate University

• Amaya Montoya

  帯広畜産大学 畜産学研究科畜産衛生学

• Yamanoi Takahiro

  Hokkai Gakuen University Faculty Of Engineering

• Yamanoi Takahiro

  Hokkai Gakuen University Division Of Electronics And Information Engineering Faculty Of Engineering

• Miyake Y

  Iwate Univ. Morioka Jpn

• 松井 基純

  The United Graduate School Of Veterinary Sciences Gifu University

• Miyake Yoh-ichi

  Obihiro Univ. Agriculture And Veterinary Medicine Hokkaido

• 宮本 明夫

  Graduate School Of Animal And Food Hygiene Obihiro University Of Agriculture And Veterinary Medicine

• 宮本 明夫

  帯広畜産大学・畜産科学科

• Acosta T

  Department Of Theriogenology Obihiro University Of Agriculture And Veterinary Medicine

• Kobayashi S

  Obihiro University Of Agriculture And Veterinary Medicine

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