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Development of the equine fetus and placenta.

Abstract: Prenatal specimens from mares with known breeding dates were used to characterize morphological changes in the fetus and placenta of pony mares. Prenatal characteristics and the day on which each was first found and weights of different components of the equine conceptus are summarized.
Publication Date: 1975-10-01 PubMed ID: 1060832
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  • Journal Article
  • Research Support
  • U.S. Gov't
  • P.H.S.

Summary

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The research article focuses on studying the growth of an unborn horse and its placenta via prenatal samples from pony mares.

Objective of the Research

  • The primary aim of this research is to understand the morphological changes that occur in the fetus and the placenta of pony mares during the prenatal phase. The researchers used specimens from mares whose breeding dates were known.

Methodology

  • Researchers utilized prenatal samples from known-breed pony mares to track and characterize the physical changes taking place in the fetus and its associated placenta.

Vital Parameters

  • The study documents key characteristics of foetal development and their corresponding timelines, from when they were initially observed.
  • It also records the weights of different components of the conceptus, which pertains to everything that develops from the zygote, including all embryonic and extra-embryonic structures. This comprehensive documentation helps to provide a more in-depth understanding of equine prenatal development.

Significance of the Study

  • This research is important as it contributes notably to the body of knowledge surrounding equine prenatal development, particularly in relation to pony breeds.
  • The findings from the study could aid veterinarians and horse breeders in predicting and enhancing equine health and productivity.

Cite This Article

APA
Douglas RH, Ginther OJ. (1975). Development of the equine fetus and placenta. J Reprod Fertil Suppl(23), 503-505.

Publication

ISSN: 0449-3087
NlmUniqueID: 0225652
Country: England
Language: English
Issue: 23
Pages: 503-505

Researcher Affiliations

Douglas, R H
    Ginther, O J

      MeSH Terms

      • Animals
      • Female
      • Fetus / physiology
      • Gestational Age
      • Growth
      • Horses / embryology
      • Placenta / physiology
      • Pregnancy

      Citations

      This article has been cited 4 times.
      1. Fedorka CE, Ali HE, Troedsson MHT. Galectinology of Equine Pregnancy. Animals (Basel) 2022 Dec 29;13(1).
        doi: 10.3390/ani13010129pubmed: 36611738google scholar: lookup
      2. Loux SC, Dini P, El-Sheikh Ali H, Kalbfleisch T, Ball BA. Characterization of the placental transcriptome through mid to late gestation in the mare. PLoS One 2019;14(11):e0224497.
        doi: 10.1371/journal.pone.0224497pubmed: 31725741google scholar: lookup
      3. Scoggin KE, Adlan F, Fedorka CE, Rakha SI, Stout TAE, Troedsson MHT, Ali HE. Gestation-Stage Related Changes in the IGF System Components in the Equine Placenta. Biomolecules 2025 Aug 6;15(8).
        doi: 10.3390/biom15081135pubmed: 40867581google scholar: lookup
      4. Marchio SP, El-Sheikh Ali H, Scott MA, Barbosa Fernandes C, Scoggin KE, Troedsson M, Boakari Y. Decoding the amniotic membrane transcriptome during equine ascending placentitis. Sci Rep 2025 Aug 21;15(1):30714.
        doi: 10.1038/s41598-025-16671-5pubmed: 40841585google scholar: lookup