EPF as a Marker for Early Embryonic Losses in Repeat Breeders

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概要

• 論文の詳細を見る

• Early pregnancy factor (EPF) is detectable in sera of pregnant cattle within 24 to 48 h after fertilization. It has been considered that the repeat breeder is relatively sterile as a result of fertilization failure and the early embryonic loss. This study used the rossete inhibition test to clarify whether repeat breeding is a result of early embyronic loss. We measured serum EPF in cattle that were diagnosed as repeat breeders to examine the incidence of early embryonic losses after artificial insemination (AI) (n=20). There were no significant differences in the presence of EPF on day 3 after AI for 20 repeat breeders and controls. Furthermore, EPF-positive rates decreased about 60% by day 21 after AI for both repeat breeders and a control group. It is suggested that a high incidence of early embryonic losses takes place in cattle, and we attempted embryo transfer (ET) as the treatment of choice.

• 日本繁殖生物学会の論文
• 1995-05-01

著者

• Kawahata K

  Koiwai Noboku Co. Ltd. Iwate Jpn

• Goto T

  Koiwai Noboku Co. Ltd. Iwate Jpn

• TAKAHASHI Jutaro

  Laboratory of Animal Breeding, Faculty of Agriculture, Iwate University, Morioka 020, Japan

• Takahashi J

  Laboratory Of Animal Breeding Iwate University

• Goto Taichi

  Technical Research Center Koiwai Noboku Co. Ltd.

• Kawahata Kyoko

  Technical Research Center Koiwai Noboku Co. Ltd.

• Yamazaki Satoru

  Laboratory Of Animal Breeding Faculty Of Agriculture Iwate University

• Yasuda Y

  Laboratory Of Animal Breeding And Reproduction Faculty Of Agriculture Iwate University

• Yasuda Yasuhisa

  Laboratory Of Animal Breeding Iwate University

• TAKAHASHI Jutaro

  Laboratory of Animal Breeding and Reproduction, Faculty of Agriculture, Iwate University

• YASUDA Yasuhisa

  Laboratory of Animal Breeding and Reproduction, Faculty of Agriculture, Iwate University

関連論文

• Detection of Early Pregnancy Factor in the Sera of Cows Whose Uteri were Infused with Trophoblastic Cell Culture Medium
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• Expression of the Myogenin-LacZ Reporter Gene During Early Postimplantation Development of the Mouse
• Quantitative Analysis of Coat-color Patterns in BALB/c ⇔ C57BL/6 Mouse Chimeras by Means of a Computer-Based Color Image Processor System
• Quantitative Analysis of Coat-color Patterns in BALB/c ⇔ C57BL/6 Mouse Chimeras by Means of a Computer-Based Color Image Processor System
• Expression of the Myogenin-LacZ Reporter Gene During Early Postimplantation Development of the Mouse
• Detection of Bovine Early Pregnancy Factor in the Culture Medium of Sperm-Injected or Plasmamembrane-Perforated Oocytes
• Bovine Early Pregnancy Factor in Recipient Serum with Embryo Transfer on the Day More Than 5 Days Different from the Estrus Cycle of Donor
• Function of the Myogenin Gene Promoter in the Muscular Dystrophic Transgenic dy/dy Mouse
• Detection of Early Pregnancy Factor (EPF) in Mare Sera
• 胚幹細胞に導入されたPMGN(-4K)LacZ-neo遺伝子のin vitroにおける発現
• Isolation and Purification of Early Pregnancy Factor (EPF) in Rat Serum
• Release Period of EPF-Like Substance(s) in Rat and Bovine Fertilized Ova
• Influence of Anti-Bovine Early Pregnancy Factor Antibody on Embryonic Development and Implantation in Rats
• EPF as a Marker for Early Embryonic Losses in Repeat Breeders
• Early Pregnancy Factor : EPF-like Substance(s) Purified from Pregnant Bovine Ovary and In Vitro Fertilized Ovum Culture Medium
• Early Pregnancy Factor: Its Characterization and Purification from Pregnant Swine Serum
• Detection of Early Pregnancy Factor in the Sera of Cows Whose Uteri were Infused with Trophoblastic Cell Culture Medium
• Bovine Early Pregnancy Factor: Its Characterization and an Attempt to Produce Anti-Bovine EPF Antibody
• Study of EPF-Like Substance(s) Detected in Fertilized Bovine Ovum Culture Medium

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