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Retained fetal membranes in the mare: A retrospective study
The Canadian Veterinary Journal = La Revue Veterinaire Canadienne
|November 1, 1988
Summary
Retained fetal membranes (RFM) in mares occurred more often after difficult births or if experienced previously. Early oxytocin therapy reduced RFM duration, with no impact on mare health or future reproduction.
Area of Science:
- Veterinary Medicine
- Equine Reproduction
- Animal Science
Background:
- Retained fetal membranes (RFM) are a common complication in equine parturition.
- Understanding risk factors and consequences of RFM is crucial for mare reproductive health.
Purpose of the Study:
- To investigate the incidence, risk factors, and reproductive consequences of retained fetal membranes (RFM) in Standardbred mares.
- To evaluate the efficacy of oxytocin therapy and intrauterine antimicrobials in managing RFM.
Main Methods:
- Retrospective analysis of 3456 deliveries from four Standardbred broodmare farms.
- Data collected on breeding methods, parturition events, and postpartum complications.
- Statistical analysis to identify risk factors and treatment effects.
Main Results:
- RFM occurred in 10.6% of deliveries, with higher incidence after dystocia and in mares with prior RFM.
- RFM after normal foaling did not significantly affect reproductive performance or mare health.
- Oxytocin therapy initiated at 2 hours postpartum reduced RFM duration (>8 hours).
- Intrauterine antimicrobials did not alter foaling rates in mares with RFM.
Conclusions:
- Dystocia and previous RFM are significant risk factors for retained fetal membranes in Standardbred mares.
- Early oxytocin administration can mitigate prolonged RFM, without adverse effects on reproductive outcomes.
- Current intrauterine antimicrobial practices show no benefit in improving foaling rates for mares experiencing RFM.
