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Related Experiment Videos

Twin reduction in the mare: current options.

M L Macpherson1, J M Reimer

  • 1Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0136, USA. macphersonm@mail.vetmed.ufl.edu

Animal Reproduction Science
|June 14, 2000
PubMed
Summary
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Early detection and manual reduction of twin embryonic vesicles in mares is highly successful. Later ultrasound-guided twin reduction techniques offer lower success rates for managing equine twin pregnancies.

Area of Science:

  • Veterinary Science
  • Reproductive Biology
  • Equine Medicine

Background:

  • Twin pregnancies in mares lead to significant economic losses.
  • Early detection is crucial for successful management of equine twins.
  • Existing methods for twin management have varying success rates.

Purpose of the Study:

  • To review and compare the efficacy of different twin management techniques in mares.
  • To highlight the importance of early ultrasonographic detection and intervention.
  • To describe ultrasound-guided twin reduction procedures for later-term pregnancies.

Main Methods:

  • Review of established practices for equine twin management.
  • Description of transrectal ultrasonographic detection and manual embryonic vesicle crush.

Related Experiment Videos

  • Explanation of transcutaneous and transvaginal ultrasound-guided twin reduction techniques.

    • Main Results:

    • Manual crush of one embryonic vesicle after early detection has a 90% success rate.
    • Ultrasound-guided twin reduction for pregnancies beyond 25 days shows lower success rates: 50% (transcutaneous) and 20% (transvaginal).

    Conclusions:

    • Early transrectal ultrasonographic detection and manual reduction is the most effective method for managing equine twins.
    • Later-stage ultrasound-guided interventions for twin reduction are less successful.
    • Timely intervention is key to mitigating economic losses associated with twin pregnancies in mares.