Mare Foaling Guide: 3 Stages, Preparation, Newborn Care
Comprehensive guide to preparing for and managing your mare's foaling process for healthy outcomes.
Successfully managing a mare through foaling requires understanding equine gestation, recognizing labor signs, and knowing how to intervene if needed. This guide covers preparation, delivery stages, and newborn care using insights from veterinary experts.
Understanding Equine Gestation Length
The average gestation period for mares ranges from 320 to 380 days, typically around 338 to 345 days, with colt pregnancies often slightly longer than fillies.
Foals born before day 320 are premature and may face health issues, while those exceeding 360 days risk complications from prolonged womb time.
Owners can calculate expected due dates using breeding records. Veterinary assistance improves accuracy for natural breedings.
Pre-Foaling Preparation Essentials
Preparation starts weeks before the due date to optimize mare and foal health.
- Vaccinations: Administer boosters 4-6 weeks prior to pass antibodies via colostrum, protecting the foal’s early immunity.
- Caslick’s Suture: Remove at least two weeks before foaling if present, to prevent delivery complications.
- Housing: Move mare to a clean, spacious foaling stall 1-2 weeks early. Walk daily if no foaling occurs to maintain muscle tone.
- Supplies Checklist: Stock towels, iodine, obstetrical lube, phone for vet, and monitoring tools.
A dedicated foaling area minimizes infection risks and allows close observation, as most foalings happen at night.
Physical Signs of Imminent Foaling
Mares show progressive changes signaling labor is near.
| Sign | Timeline Before Foaling | Description |
|---|---|---|
| Udder Development | 2-6 weeks | Mammary glands enlarge and fill with colostrum. |
| Waxing of Teats | 6-48 hours | Colostrum dries into waxy plugs on teats in 95% of mares. |
| Milk Calcium Test | Within 48 hours | Levels over 200 ppm predict foaling soon. |
| Relaxation | Days prior | Vulva loosens, tailhead muscles soften. |
Test milk electrolytes for precise prediction: rising calcium and potassium, falling sodium.
The Three Stages of Labor Explained
Foaling divides into three distinct phases, each with specific signs and durations.
Stage 1: Preparation and Positioning
Lasts 1-4 hours, resembling colic: restlessness, frequent lying/standing, flank watching, sweating, tail raising, and pawing.
Uterine contractions position the foal: from back-lying to belly-down with forelegs and head extended.
Ends with chorioallantois rupture, releasing fluid. Monitor closely; prolonged stage without progress warrants vet call.
Stage 2: Active Delivery
Typically 15-30 minutes from water breaking to foal expulsion.
Mare pushes powerfully. Normal presentation: forelegs (one slightly ahead), head along legs, visible through amnion.
Clear foal’s nostrils if needed. Complete delivery usually quick; over 30 minutes, heavy bleeding, or exhaustion signals dystocia—call vet immediately.
Hind legs may linger briefly post-shoulders.
Stage 3: Placental Expulsion
Completes within 3 hours. Tie placenta off to prevent trampling but never pull, risking uterine damage.
Retained placenta endangers mare with infection or laminitis.
Newborn Foal Health Milestones
Use the “one-two-three” rule for assessment: standing in 1 hour, nursing in 2 hours, passing meconium in 3 hours.
- Colts urinate by 6 hours; fillies by 10-12 hours.
- Dry foal thoroughly, dip navel in iodine.
- Ensure vigorous nursing for colostrum intake within first hours.
Monitor for weakness, labored breathing, or failure to stand—indicate issues needing intervention.
Post-Foaling Mare Care and Monitoring
Check for complete placental passage and minimal bleeding. Monitor uterine tone and lochia discharge.
Parasite control: deworm mare post-foaling, foal at 1-2 months.
Fertility returns quickly; mares ovulate ~10 days later. Wait or use induction for rebreeding.
Recognizing and Handling Complications
Common issues include dystocia (5-10% cases), retained placenta, uterine prolapse, or foal malposition.
- Dystocia Signs: Prolonged Stage 2, abnormal presentation.
- Intervention: Vet-assisted delivery critical within minutes due to placental detachment risks.
- Prematurity: Weak foals need intensive care like warming, oxygen.
Always have emergency vet contacts ready.
Foaling Stall Setup Recommendations
Ideal stall: 14×14 feet minimum, deep bedding (straw preferred), non-slip floor, good ventilation, low lighting for night vision.
Install camera for remote monitoring.
FAQ
How accurate are foaling predictions?
Milk tests are reliable within 48 hours if calcium exceeds 200 ppm; waxing varies.
What if labor exceeds normal times?
Stage 1 over 4 hours, Stage 2 over 30 minutes, Stage 3 over 3 hours—contact vet.
Can mares foal standing?
Yes, especially early Stage 2; foal may land safely if prepared.
Is colostrum testing needed for foals?
Yes, check IgG levels 12-24 hours post-birth to confirm immunity.
When to rebreed after foaling?
Around day 10+ for best success, with vet guidance.
References
- The One-Two-Three’s of Foaling — Brandon Equine Medical Center. 2020-05. https://brandonequine.com/wp-content/uploads/2020/05/the-one-two-threes-of-foaling.pdf
- Guiding Your Mare Through Foaling Season — Wedgewood Pharmacy. N/A. https://www.wedgewood.com/blog/guiding-your-mare-through-foaling-season-7-steps-to-their-first-steps/
- Stages of Foaling in Horses — Kentucky Equine Research. N/A. https://ker.com/equinews/stages-foaling-horses/
- Parturition in Horses — Merck Veterinary Manual. N/A. https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-horses/parturition-in-horses
- Foal Speed Ahead: Caring for the Newborn Horse — Cornell University College of Veterinary Medicine. 2023-02-03. https://www.vet.cornell.edu/about-us/news/20230203/foal-speed-ahead-caring-newborn-horse
- Foaling Management and Care of the Nursing Foal — Oklahoma State University Extension. N/A. https://extension.okstate.edu/fact-sheets/foaling-management-and-care-of-the-nursing-foal.html
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