Foaling Checklist: Complete Guide to Preparing for Mare Birth & Newborn Foal Care

Foaling Checklist: Complete Guide to Preparing for Mare Birth & Newborn Foal Care

By FarmVetGuide Editorial Team · Published March 2026 · Updated March 2026 · Based on verified data from our directory of 9,500+ practices

Foaling season is one of the most exciting — and stressful — times on any horse farm. Whether you're a first-time breeder or a seasoned horseperson preparing for your twentieth foaling season, having a complete, practical checklist in hand can mean the difference between a smooth delivery and a life-threatening emergency. Mares give very few warning signs before foaling, and things can go wrong fast. A newborn foal can go from healthy to critically ill within hours if not properly attended. This guide walks you through everything you need to know: how to prepare your barn and foaling kit weeks in advance, how to read the signs of impending labor, what normal delivery looks like and when to call your vet, how to care for the mare and foal in the critical first 24 hours, and how to recognize the warning signs that demand immediate veterinary attention. Use it as your master reference every foaling season.

Why Preparation Is Everything in Foaling

Unlike cattle, which often calve in pastures with minimal human intervention, mares frequently foal at night and the process unfolds rapidly — typically in 20 to 30 minutes once active labor begins.[2] A foal that is not breathing, not nursing, or not passing its first manure (meconium) within predictable timeframes faces rapidly worsening odds. Owners who are unprepared — who don't have colostrum on hand, who haven't established a relationship with a large animal vet, who don't know the normal foaling sequence — are at a severe disadvantage.

The investment in preparation is modest compared to the cost of a veterinary emergency or the loss of a foal. Equine veterinary practices consistently report that the foaling emergencies with the worst outcomes involve owners who called too late, who weren't watching when labor began, or who didn't have basic supplies available. This checklist is designed to eliminate those gaps.

The Cost of Being Unprepared

Emergency ScenarioTypical Vet CostSurvival Rate (Unprepared)Survival Rate (Prepared)
Dystocia (malpresentation)$500-$3,000+~40%~75%
Retained placenta (over 3 hrs)$300-$80060% (sepsis risk)90%+ (early intervention)
Neonatal maladjustment (dummy foal)$2,000-$8,00030-50%60-80% (with ICU)
Failure of passive transfer$500-$2,50050% (if untreated)95%+ (with plasma)
Meconium impaction$200-$1,20070%95%+

Timing Your Preparation

Most experienced breeders begin active foaling preparation 4 to 6 weeks before the mare's due date. However, since equine gestation averages 340 days but can range from 320 to 370 days, you should begin building your foaling kit and preparing your foaling stall no later than 3 weeks before the expected due date. Many mares foal early with no warning.

Setting Up Your Foaling Stall

A proper foaling stall is larger than a standard horse stall. The minimum recommended size is 14 feet by 14 feet, with 16 by 16 feet being ideal. This gives the mare room to lie down, roll, and get up without injuring herself or the foal. The stall should be thoroughly cleaned and disinfected at least two weeks before the expected foaling date, then bedded deeply with clean straw — not shavings. Wood shavings can stick to wet foals and interfere with breathing.

Foaling Stall Requirements

  • Size: Minimum 14x14 ft; 16x16 ft preferred
  • Bedding: Deep, clean straw (not shavings) — at least 6 to 8 inches deep
  • Walls: Solid bottom boards to prevent foal from getting legs trapped underneath
  • Lighting: Bright enough for observation but not harsh; install a camera if possible
  • Temperature: Shelter from drafts; supplemental heat lamp on standby for cold climates
  • Water: Automatic waterer or large bucket — the mare will drink heavily after foaling
  • Access: Easy access for the vet — wide door, no obstacles in the aisle
  • Security: Latches the mare cannot open; no sharp edges or protruding nails

Foaling Camera and Monitoring Systems

A barn camera connected to your smartphone is one of the best investments a breeder can make. Several systems are designed specifically for foaling monitoring. Some attach to the mare's halter and alert you when she lies down in a foaling position. Others use motion detection in the stall. The goal is to be notified the moment active labor begins, since you have a narrow window — often 15 to 30 minutes — to assess whether delivery is progressing normally and whether veterinary assistance is needed.

Popular foaling monitor options include the Foal Alert system (a transmitter in the mare's vulva), Breeder's Edge wireless camera systems, and smartphone-connected IP cameras. At minimum, plan to check on the mare every 30 to 60 minutes once she shows signs of imminent foaling, even if you have camera monitoring.

Stall Disinfection Protocol

  1. Remove all old bedding completely; bag and remove from the barn
  2. Scrub walls, floors, and feed buckets with hot water and detergent
  3. Rinse thoroughly and allow to dry
  4. Apply a diluted bleach solution (1:10 bleach to water) or a commercial equine-approved disinfectant
  5. Allow stall to air dry completely before adding fresh bedding
  6. Add deep straw bedding 2 weeks before due date; refresh as needed

The Complete Foaling Kit Checklist

Your foaling kit should be assembled at least 3 weeks before the expected foaling date and kept in the foaling stall or immediately adjacent to it. A tackle box, a plastic storage bin with a lid, or a large duffel bag all work well. Label everything clearly, check expiration dates on medications, and make sure your vet's emergency number is posted prominently.

Essential Medical Supplies

ItemPurposeQuantityNotes
Disposable obstetric gloves (shoulder length)Assisting delivery if needed6-10 pairsLubricated preferred
Sterile lubricant (OB lube)Assist with delivery1 large bottleKeep warm in cold climates
Iodine solution (Betadine 7%)Dip umbilical stump1 small bottleDilute to 0.5% for navel dipping
Navel dip cupApply iodine to navel2Wide-mouth preferred
Fleet enema (saline, ready-to-use)Meconium relief2Pediatric size
Colostrum (frozen backup)Passive immunity if mare has no milk2 litersThaw in warm water, not microwave
Nursing bottle and nipple (Pritchard teat)Supplement feeding if needed1 setHorse-specific nipple
Thermometer (digital rectal)Check foal and mare temperature2Normal foal temp: 99-101.5 F
StethoscopeAuscultate heart rate, gut sounds1Normal foal HR: 80-120 bpm after first hour[6]
Sterile gauze and bandaging materialMinor wound careAssorted
Clean towelsDry the foal6-8 largeOld but washed
Bucket for warm waterWarm hands, warm colostrum1 bucketKeep heat source handy

Documentation and Identification Supplies

  • Notebook and pen for recording times: water break, foal delivered, foal stood, foal nursed, placenta passed
  • Flashlight or headlamp — foaling often happens in the dark
  • Camera or smartphone for photographs (Jockey Club registration requirements)
  • Foal identification band or temporary marking materials
  • Halter and lead in foal size
  • Large plastic bag or bucket to collect and save the placenta for veterinary examination

Emergency Supplies

  • Foal Warmer / Heat Lamp: Essential in cold climates below 40 F. A chilled foal can die within hours.
  • Oxygen source: If your farm is remote, a small oxygen cylinder with a neonatal mask can be life-saving for foals slow to breathe.
  • Plasma (frozen equine plasma): Some breeders in remote areas keep a unit on hand for failure of passive transfer. Consult your vet.
  • Veterinarian emergency phone number: Posted on the stall door and saved in your phone. Confirm 24-hour emergency availability before foaling season.

Reading the Signs: Pre-Foaling Changes in the Mare

Mares give a series of physical signs in the days and hours before foaling. Recognizing these signs allows you to begin intensive monitoring at the right time. No single sign is definitive — mares are notoriously unpredictable — but a combination of signs in the timeline below should put you on high alert.

Weeks Before Foaling

  • Udder development (bagging up): The mare's udder will begin to enlarge 2 to 6 weeks before foaling. In maiden mares, this may begin only days before. The teats will gradually fill out.
  • Relaxation of the hindquarters: The ligaments on either side of the tailhead soften and relax, making the area above the tail look sunken. This typically begins 1 to 3 weeks before foaling.
  • Vulvar relaxation: The vulva elongates and becomes softer and more relaxed in appearance.
  • Waxing: Small waxy droplets form on the tips of the teats, usually 12 to 48 hours before foaling. Not all mares wax.

Days to Hours Before Foaling

SignTypical Timing Before FoalingReliability
Milk streaming or dripping from teats1-24 hoursHigh — especially if streaming
Waxing on teat tips12-48 hoursModerate (not all mares wax)
Elevated milk calcium (over 200 ppm)12-24 hoursHigh — use commercial test strips
Marked restlessness, pawing, lying down and getting up1-4 hoursHigh
Sweating, especially at flanks and behind elbows0-2 hoursHigh
Frequent urination and defecation0-4 hoursModerate
Looking at flanks repeatedly0-4 hoursModerate
Water breaking (rupture of chorioallantois)Active labor beginningDefinitive

Milk Calcium Testing

Milk calcium testing strips offer one of the most reliable ways to predict foaling within 12 to 24 hours. As foaling approaches, the mare's milk calcium concentration rises above 200 parts per million and her milk pH changes from acidic to alkaline. Once calcium reads above 200 ppm on two consecutive tests 4 hours apart, foaling is usually imminent. Test strips are available from equine supply companies for approximately $25 to $40 per kit.

The Three Stages of Labor: What to Expect

Understanding the normal sequence of equine labor is critical. Knowing what is normal lets you recognize what is not normal and when you need to call for help. Equine labor is divided into three stages, each with its own timeline and characteristics.

Stage 1: Preparatory Labor

Stage 1 labor is the preparatory phase during which the uterus begins contracting and the foal positions itself for delivery. It typically lasts 1 to 4 hours. Signs include restlessness, pawing, getting up and lying down repeatedly, sweating, and intermittent colic-like pain. Many mares interrupt Stage 1 if they sense human activity in the barn — this is normal behavior, as mares in the wild would postpone birth if predators were nearby. Keep human activity minimal and quiet.

Stage 2: Active Delivery

Stage 2 begins when the chorioallantois (the outer fetal membrane) ruptures — the water breaking. A large volume of allantoic fluid (4 to 8 gallons) will gush from the vulva. Stage 2 should be completed within 20 to 30 minutes.[2] If active straining labor has been going on for more than 30 minutes without significant progress, call your veterinarian immediately.

The normal foal delivery sequence:

  1. Water breaks — allantoic fluid released
  2. Amnion (white, glistening inner membrane) appears at vulva
  3. One front foot appears, sole facing down
  4. Second front foot appears, slightly behind the first (diving position)
  5. Foal's nose rests on its front legs
  6. Head, shoulders, and chest are delivered with the mare's pushing
  7. The foal slides out — the mare often rests with the foal's hind legs still in the birth canal
  8. Do not rush to break the umbilical cord — allow it to pulse for 2 to 5 minutes

Stage 3: Placenta Passage

Stage 3 is the passage of the placenta (afterbirth). This normally occurs within 1 to 3 hours after foaling.[3] A retained placenta — any placenta still attached 3 hours after delivery — is a medical emergency in mares and requires immediate veterinary attention.[3] Unlike cattle and goats, horses should NEVER have the placenta manually removed by the owner. Manual removal tears placental villi from the endometrium, leading to severe uterine infection, toxemia, and laminitis.

Important: Tie the placenta up in a knot above the hocks after delivery so the mare doesn't step on it before it is fully passed. Save the entire placenta in a bucket for veterinary examination.

Stage 2 Danger Signs — Call the Vet Immediately If:

Warning SignWhat It May IndicateAction
Red, velvety membrane at vulva (not white or clear)Premature placental separation ("red bag")[5]EMERGENCY — call vet, cut membrane immediately
Both feet present but nose not visible after 10 min of pushingHead deviated to sideCall vet now
One foot only visible with strong pushingLeg malpresentationCall vet now
No progress after 30 minutes of active strainingDystocia (any cause)EMERGENCY — call vet immediately
Feet visible but soles facing upPosterior presentationEMERGENCY — very high-risk delivery
Mare in extreme pain, rolling violentlyUterine rupture or other complicationEMERGENCY

Caring for the Foal in the First 24 Hours

The first 24 hours of a foal's life are among the most critical. Several physiological events must occur within specific timeframes for the foal to survive and thrive. Memorize the "1-2-3 rule": the foal should stand within 1 hour, nurse within 2 hours, and the placenta should pass within 3 hours.[1] Deviation from these milestones by more than 30 to 60 minutes warrants a veterinary call.

Immediate Post-Birth Care (First 30 Minutes)

  1. Clear the airway: If the amnion did not rupture during birth, break it immediately at the foal's head and clear mucus from nostrils.
  2. Stimulate breathing: Rub the foal vigorously with clean towels to stimulate respiration and circulation and help dry it.
  3. Check heart rate: Normal is 60-80 beats per minute immediately after birth, rising to 80-120 bpm within the first hour.
  4. Let the cord separate naturally: Do not cut or tie the umbilical cord. It will break naturally when the mare stands or the foal moves. Allow it to pulse for at least 2 minutes — it continues to deliver blood to the foal.
  5. Dip the navel: As soon as the cord breaks, dip the stump in 0.5% chlorhexidine or diluted iodine. Repeat 3 to 4 times in the first 24 hours.
  6. Observe bonding: The mare should show strong interest in the foal — nuzzling, nickering, licking. A mare that ignores or is aggressive toward her foal needs close monitoring.

The 1-2-3 Milestones

MilestoneNormal TimeframeAction if Late
Foal standsWithin 1 hourIf not standing at 2 hrs — call vet
Foal nurses successfullyWithin 2 hoursIf not nursing at 3 hrs — call vet, supplement with colostrum
Placenta passesWithin 3 hoursIf retained at 3 hrs — call vet immediately
Meconium passedWithin 3-6 hoursIf not by 12 hrs — enema; call vet if distressed
Foal urinatesWithin 4-8 hoursIf not by 12 hrs — call vet
Foal appears bright, alert, responsiveOngoing from birthAny lethargy or weakness — call vet

Colostrum: The Critical First Milk

Colostrum is the mare's first milk, produced in the 24 to 48 hours after foaling. It contains high concentrations of immunoglobulins (IgG antibodies) that the foal must absorb to develop passive immunity. Foals are born with essentially no immune protection — they rely entirely on the antibodies in colostrum absorbed through the gut wall. This window for gut absorption closes at approximately 12 to 24 hours after birth, after which the foal's gut becomes impermeable to large IgG molecules.[4]

The foal must consume adequate colostrum — at least 1 to 2 liters — in the first 8 to 12 hours of life. If the mare has been dripping milk before foaling and has lost much of her colostrum, if the foal is too weak to nurse, or if the mare rejects the foal, you must have backup frozen colostrum available. Your veterinarian can test IgG levels at 18 to 24 hours to confirm passive transfer was adequate.

Failure of Passive Transfer (FPT)

Failure of passive transfer occurs when a foal has inadequate IgG levels (less than 800 mg/dL) at 24 hours of age.[4] FPT affects an estimated 3 to 6% of foals. Treatment depends on timing:

  • Under 12 hours old: Oral colostrum supplementation (still gut-absorbable)
  • 12 to 24 hours old: Oral colostrum may still be partially absorbed; supplement aggressively
  • Over 24 hours old: Intravenous plasma transfusion required; cost $300-$800 per liter of plasma

Newborn Foal Health Checks

Even if birth goes smoothly, a thorough health assessment is essential. Your veterinarian should examine the foal within 12 to 24 hours of birth for a new foal exam. This covers heart assessment, cleft palate check, umbilical hernia palpation, and IgG testing — checks that go beyond what most owners can do at home.

Owner Assessment: What to Check

SystemWhat to CheckNormal FindingAbnormal — Call Vet
BreathingRate, effort, character20-40 breaths/min, quietRapid, labored, noisy breathing
Heart ratePulse at jaw or chest80-120 bpm after 1st hourBelow 60 or above 150 bpm
TemperatureRectal thermometer99.5-101.5 FBelow 98 F or above 102.5 F
Gum colorMucous membrane colorPink, moistWhite, blue, yellow, or bright red
Capillary refill timePress gum, time to pink returnUnder 2 secondsOver 2 seconds
EyesAppearance, responsivenessBright, alert, responsive to lightDull, sunken, entropic eyelid
NavelStump appearanceDrying, no swelling or dischargeMoist, swollen, or draining
LimbsConformation, flexionAble to stand, normal anglesKnuckling, contracture, laxity
Nursing behaviorInterest in mare, latchingSeeking teat, nursing vigorouslyNot seeking, weak suck, rejection

Common Newborn Foal Problems and Costs

ConditionSignsUrgencyTypical Vet Cost
Meconium impactionStraining, tail flagging, not defecatingHigh$100-$500
Neonatal maladjustment syndromeWandering, not nursing, seizures, barkingEmergency$2,000-$10,000+
SepticemiaFever, weakness, hot joints, not nursingEmergency$3,000-$15,000+
Umbilical infection (joint ill)Swollen navel, swollen joints, feverUrgent (24-48 hrs)$500-$3,000
Failure of passive transferDiagnosed by blood test at 24 hrsUrgent$300-$2,000
Angular limb deformityCrooked legs, knucklingModerate (days)$500-$5,000+
Entropion (inrolled eyelid)Squinting, tearing, eye dischargeUrgent (causes corneal damage)$100-$400
Ruptured bladderDistended abdomen, not urinating, depressionEmergency$2,000-$6,000

Mare Care After Foaling

Once the foal is delivered, nursing, and stable, attention must shift to the mare. Foaling is a major physical event, and mares can experience serious complications in the hours and days following delivery. A mare that does not receive proper post-foaling care is at risk for retained placenta, uterine infection, colic, and laminitis.

Immediate Post-Foaling Mare Care

  • Allow bonding time: Keep the mare and foal together in the foaling stall without interruption for the first hour.
  • Offer fresh water and hay: The mare will be thirsty and hungry. Avoid large amounts of grain immediately after foaling, as this can increase laminitis risk.
  • Monitor placenta passage: Note the time of delivery and check the clock. If the placenta has not passed completely within 3 hours, call your veterinarian.
  • Save and examine the placenta: Once passed, spread it out to confirm it is complete — the placenta should look like an F or Y shape with both uterine horns intact. Place it in a bucket of water for your vet to examine.
  • Check the mare's vital signs: Temperature, heart rate, and gut sounds should be checked once or twice on foaling day. Normal temperature 99-101 F; heart rate 28-44 bpm; gut sounds present in all four quadrants.

Post-Foaling Mare Monitoring Schedule

DayWhat to MonitorCall Vet If
Day 1Placenta passage, vital signs, attitude, uterine dischargeRetained placenta over 3 hrs; fever above 102 F; colic signs
Days 2-3Discharge (should be scant, reddish-brown), appetite, attitudeFoul-smelling discharge; depression; not eating; hoof tenderness
Days 3-7Udder fullness (foal nursing adequately), hoof temperatureHoof pain or digital pulse (laminitis sign); swollen legs
Days 7-14Foal heat cyclingAbnormal cycling, retained fetal structures (uncommon)

Foal Heat Breeding

Most mares come into their first post-foaling heat cycle at 7 to 14 days — the foal heat.[5] Conception rates on foal heat are lower than on subsequent cycles, and breeding before day 10 carries increased pregnancy failure risk. A uterine culture before breeding on foal heat is recommended if delivery was complicated or required veterinary intervention.

Regional and Seasonal Considerations

Foaling season varies significantly by region and breed. While Thoroughbred racing registries set January 1 as the universal birthdate — pushing breeders toward winter and early spring foalings — most other breeds allow foaling to occur when nature and climate align. Understanding the unique challenges of your region is essential for planning.

Foaling Season by Region

RegionTypical Foaling SeasonPrimary RisksSpecial Preparations
Northern states (MT, MN, ND, WI)March-May (sometimes Feb for TB)Hypothermia in foals, frozen water, difficult vet access in stormsHeat lamps, insulated foaling stall, snow chains for vet trucks
Southern states (TX, FL, GA, LA)Feb-AprilMosquito-borne disease (EEE, WNV) in spring; heat stress in late-season foalsMosquito management, early vaccination, shade access
Mountain West (CO, WY, ID, UT)April-June at altitudeLate snowstorms, altitude effects on neonates, limited vet coverage in rural areasEmergency foaling plan for bad weather; long-distance vet relationships established early
Mid-Atlantic and SoutheastFeb-MayPotomac Horse Fever in summer/fall; mud and fescue pasturesFescue-free pasture in last trimester; PHF vaccination
Pacific Coast (CA, OR, WA)Feb-April (coastal); May-July (inland)Wet conditions, equine herpesvirus exposureBiosecurity during herpesvirus outbreaks; dry foaling area

Fescue Toxicity Warning for Pregnant Mares

Tall fescue grass infected with the endophytic fungus Neotyphodium coenophialum is a serious reproductive hazard for pregnant mares. The fungal toxins interfere with prolactin production, leading to prolonged gestation, thickened placenta, agalactia (no milk production), and poor foal viability. It is estimated that 35 to 40 million acres of fescue pasture in the United States are infected with endophyte. Any mare in her last trimester should be removed from fescue pasture at least 60 to 90 days before her due date. Consult your veterinarian about the drug domperidone if fescue exposure is unavoidable.

Cold-Weather Foaling Protocols

Foaling in sub-freezing temperatures requires additional precautions. A wet newborn foal can become hypothermic within 15 to 30 minutes in temperatures below 20 F. Equip your foaling stall with:

  • A heat lamp mounted safely out of reach (use infrared bulbs in appropriate fixtures, mounted high to prevent fire)
  • Extra towels for vigorous drying immediately after birth
  • A foal blanket sized for a newborn
  • A warm-water thermos or hot water access to warm iodine dip and OB lube
  • Insulation for pipes; buckets checked regularly for ice

A foal that is shivering, weak, or has a rectal temperature below 98 F needs active warming: move to a warm environment, use towels and blankets, apply a heat lamp, and call your veterinarian. A hypothermic foal cannot nurse effectively even if it appears to try.

Costs and Financial Planning for Foaling Season

Breeding and foaling can be expensive, and the costs extend well beyond the stud fee. Building a realistic financial plan before foaling season means you won't be caught off guard by veterinary bills. Costs vary by region — higher in the Northeast and West Coast, lower in rural Midwest and South — and by practice type.

Typical Foaling-Related Veterinary Costs

ServiceLow EstimateHigh EstimateNotes
New foal exam (routine)$100$300Includes IgG test at many practices
Emergency farm call (nights/weekends)$150$400Call fee only; procedures extra
Dystocia assistance (farm)$500$3,000Depends on complexity
Retained placenta treatment$300$800Oxytocin, lavage, antibiotics
Plasma transfusion (FPT)$400$1,200Per liter; often 1-2 liters needed
Referral to equine hospital (dystocia)$3,000$10,000+Surgery, ICU care
Neonatal ICU (septicemia, NMS)$3,000$15,000+Per week; often 1-2 weeks
Foal enema (meconium)$50$200Often bundled with new foal exam
Post-foaling uterine lavage (mare)$200$600If endometritis suspected
Pre-foaling bloodwork (mare)$100$300Recommended for high-risk mares

Mare Vaccination Schedule Before Foaling

Vaccinating the mare correctly in the weeks before foaling is critical. The purpose is twofold: protect the mare against disease, and maximize antibody content in her colostrum so the foal receives the best possible passive immunity.

VaccineTimingPurpose
EWT/WNV (combination)4-6 weeks before foalingProtect mare; boosts colostral antibodies
Rhinopneumonitis (EHV-1)5th, 7th, 9th months of gestationPrevent EHV-1 abortion
Rabies4-6 weeks before foalingRabies-endemic areas
Strangles4-6 weeks before foaling (if risk area)Boosts colostral antibodies
Botulism4-6 weeks before foalingOhio, Kentucky, Mid-Atlantic especially
Rotavirus8th, 9th, 10th months of gestationFoal diarrhea prevention on endemic farms

When to Call the Veterinarian: Quick Reference

One of the most common mistakes horse owners make during foaling is waiting too long to call for help. Equine veterinarians consistently emphasize: call early, call often. Know your vet's emergency number before foaling season begins and confirm their after-hours availability.

Call Immediately (Do Not Wait)

  • Red membrane at the vulva before the foal is delivered ("red bag delivery")
  • More than 30 minutes of active straining without delivery
  • Only one foot visible after water breaks and active straining has begun
  • Feet visible but soles pointing upward
  • Placenta not passed within 3 hours of foaling
  • Mare showing signs of colic after foaling
  • Mare is severely distressed, unable to stand, or collapses

Call Within 1-2 Hours

  • Foal not standing at 2 hours of age
  • Foal not nursing successfully at 3 hours of age
  • Foal appears weak, dull, or unresponsive
  • Foal's temperature is below 98 F or above 102.5 F
  • Foal straining to defecate without passing meconium by 6 hours
  • Mare has not passed placenta and is approaching the 3-hour mark

FAQ: Foaling Questions from Horse Owners

How long does it take for a mare to foal after her water breaks?

Once the chorioallantois ruptures (water breaks), active delivery should be completed within 20 to 30 minutes. If the mare is actively straining and pushing but has not delivered the foal within 30 minutes of the water breaking, this is an emergency. Call your large animal veterinarian immediately. Every additional minute of delay in a dystocia increases risk to both mare and foal.

What does "waxing" mean and is it reliable as a foaling predictor?

Waxing refers to small deposits of colostrum — yellowish, waxy-looking beads — that appear on the tips of the mare's teats, typically 12 to 48 hours before foaling. It indicates the mare's udder is full and her milk is ready. It is a useful sign but not completely reliable: some mares wax for days without foaling, and some never wax at all, going straight to full udder and foaling. Milk calcium testing is more reliable than waxing alone.

The mare passed the placenta but I'm not sure it's complete. What should I do?

Lay the placenta flat on a clean surface and examine its shape. A complete placenta resembles a large, reddish-gray F or Y shape, with both uterine horns present. Look for any torn or ragged edges where a portion might have remained in the uterus. If you're unsure, keep the entire placenta in a bucket of water and have your veterinarian examine it during the new foal exam. Any suspicion of a retained piece is a veterinary call.

My foal is 4 hours old and hasn't nursed yet. Is this an emergency?

Yes, this warrants an immediate veterinary call. Foals should nurse successfully within 2 hours of birth, with 3 hours being the outer acceptable limit in some cases. At 4 hours without nursing, the foal is at significant risk of hypoglycemia (low blood sugar) in addition to missing the critical colostrum absorption window. Your veterinarian can identify why the foal isn't nursing and get colostrum into the foal via tube feeding if necessary.

Can I give the mare Banamine for post-foaling colic?

Call your vet first before administering any medications. While flunixin meglumine (Banamine) is commonly used in horses with colic, post-foaling colic can have a variety of causes — some of which require specific treatments that Banamine could mask. A mare with a large colon displacement needing surgery could have her pain masked temporarily while her condition deteriorates. Your vet may advise Banamine over the phone, but get the call in first so they can assess the situation.

What should the foal's first poop look like, and when should I give an enema?

The foal's first manure is called meconium — it is dark brown to black, tarry, and firm. It should be passed within 1 to 6 hours of birth. If the foal is straining repeatedly without passing manure, is flagging its tail, or appears painful within the first 12 hours, this likely indicates meconium impaction. A single Fleet enema (saline, ready-to-use, pediatric size) can be administered rectally with care. If one enema does not resolve the straining within 30 minutes, or if the foal is very uncomfortable, call your veterinarian rather than administering multiple enemas.

How do I know if my mare is producing enough milk?

A well-nourished foal receiving adequate milk will nurse frequently (every 20 to 30 minutes in the first days of life) and will have a rounded, well-filled belly. It will be bright, alert, and spending time exploring and resting between nursing sessions. A mare that is not producing milk — often from fescue toxicity — will have an udder that does not fill and teats that do not produce milk when expressed. This is an emergency requiring veterinary treatment and supplemental feeding for the foal.

Summary: Foaling Season Readiness Checklist

Use this master checklist to confirm you are ready for foaling season. Check off each item at least 3 to 4 weeks before the mare's expected due date.

  • Foaling stall cleaned, disinfected, and bedded with deep straw
  • Foaling kit assembled and stocked (medical supplies, towels, iodine, enema, colostrum)
  • Foaling camera or monitoring system set up and tested
  • Large animal veterinarian's emergency number confirmed and posted
  • Pre-foaling vaccinations given to mare on schedule (4-6 weeks before)
  • Mare removed from fescue pasture (if applicable) at least 60 days before due date
  • Frozen backup colostrum on hand (2 liters minimum)
  • Milk calcium test strips purchased and on hand
  • Heat lamp or foal warmer available (cold climates)
  • New foal exam scheduled with vet (12-24 hours after expected foaling)
  • Foal health milestones memorized: stand in 1 hr, nurse in 2 hrs, placenta in 3 hrs
  • Placenta collection bucket ready to save afterbirth for vet examination
  • Meconium enema supplies on hand and technique reviewed
  • Colostrum tube feeding technique practiced or instruction obtained from vet

Find a Large Animal Vet Near You

The single most important thing you can do before foaling season is establish a relationship with a qualified large animal or equine veterinarian who offers after-hours emergency coverage. Foaling emergencies happen at night, on weekends, and during holidays — because mares don't follow a convenient schedule.

FarmVetGuide is the most comprehensive directory of large animal and equine veterinarians in the United States, with over 9,500 verified practices listed across all 50 states. You can search by county, filter for equine specialists, find practices offering 24/7 emergency services, and locate USDA-accredited vets in your area. Don't wait until your mare is in active labor to start calling around — find your foaling vet now, introduce yourself, and have their number saved and posted in your barn before the first foal hits the ground.

Visit FarmVetGuide.com to find an equine or large animal veterinarian near you — searchable by state, county, species, and emergency availability.

Sources & References

This guide references peer-reviewed research and guidelines from leading veterinary organizations. All medical information has been reviewed for accuracy against these authoritative sources.

  1. American Association of Equine Practitioners (AAEP) — Foaling Mare & Newborn: Preparing for a Safe & Successful Foal Delivery. Last accessed March 2026.
  2. Merck Veterinary Manual — Parturition in Horses. Last accessed March 2026.
  3. Merck Veterinary Manual — Retained Fetal Membranes in Mares. Last accessed March 2026.
  4. Merck Veterinary Manual — Failure of Transfer of Passive Immunity in Large Animals. Last accessed March 2026.
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