What Is A Pregnant Horse Called? (Solved)

How long before you can tell a horse is pregnant?

  • Pregnancy can be confirmed by ultrasound after approximately two weeks after the breeding took place. Blood and urine testing can be done two to three months after conception. Alternatively, a veterinarian may be able to manually feel the small embryo in the mare’s uterus approximately six weeks into the pregnancy via rectal palpation.

What is a female horse called before giving birth?

The youngster holds this title until he is four years old after which his name changes to stallion or gelding. Whether a male horse is a stallion or a gelding will depend on its ability to reproduce. The female is called a filly, and as with males, a female baby horse is considered a filly until she is four years old.

Is a mare a pregnant horse?

They can have, on occasion, malpositioned foals or other complications. On average, a mare’s pregnancy lasts 338 to 343 days. Labor and delivery are generally very uneventful. Mares seem to have some control over their delivery and prefer to foal in privacy at night.

What is a female horse that has had a foal called?

The only difference between a mare and a filly is age. Both terms are used to describe a female horse. When a mare gives birth to a female foal, they are called a filly. This term can be used to accurately describe the young female horse until they reach four years of age.

What is a foals mother called?

A foal’s mother is called its dam. And, a foal’s grandmother on either side could be called its granddam. But, to specify the dam’s male parent, the word damsire is used.

What is a horse baby called?

A young horse is known as a foal.

Do horses have periods and bleed?

A female horse undergoes the same cycle over a slightly different time period. But instead of menstruating, a mare will reabsorb the uterine lining as it breaks down. You’ve probably heard of estrogen and progesterone. These are two of the hormones that control a woman’s – or mare’s – reproductive cycle.

What is a broodmares?

Definition of broodmare: a mare kept for breeding.

Can a horse have twins?

Rare Case All Around In horses, twin fetuses are uncommon. Carrying them to term is even more unusual, and birthing healthy twin foals is especially unlikely. “Twin pregnancies are extremely undesirable in horses, as they almost always have a bad outcome,” said Dr.

What is female horse called?

…male horse is called a stallion, the female a mare. A stallion used for breeding is known as a stud.

Why is a horse called a Philly?

Roots of the Word Filly Its roots are in the Old Norse word “fylja ” for female foal, that evolved to the Middle English word “filli” and is also similar to the Old English word for foal. The French word “fille” has similar roots. In English, a slang way of saying girl may be to refer to her as a filly.

What is a female colt called?

More specific terms are colt for a male foal and filly for a female foal, and are used until the horse is three or four. When the foal is nursing from its dam (mother), it may also be called a “suckling”.

What gender is a gelding horse?

Male horses – known as stallions, geldings or colts depending on whether their manhood is still intact – far outnumber females – called fillies – on the track.

What is baby of donkey called?

Donkey definitions Foal: A foal is a baby male or female donkey up to one year old.

What does sire mean horses?

Sire: The father of a horse. A horse becomes a sire after one of his offspring wins a race at a recognized racetrack. Spell: When a horse has been given a break from racing and been freshened up. Stallion: A male horse that has not been gelded (castrated).

What’s a sire and dam?

A sire and dam refer to a horse’s parents. Just as you refer to your parents as mom and dad, a horse’s parents are referred to as a dam and sire. A sire is a term used to describe the father of a horse. A dam is the mother of a horse. A term you will also hear dams called is broodmares.

Pregnant Mares: What owners need to know as foaling time approaches – Oklahoma State University

Tuesday, March 2, 2021 is a Tuesday. The use of moderate activity during a mare’s pregnancy, such as active walking or riding, will aid with controlling her weight and maintaining muscular tone and strength, which will be required during her final 2 1/2 months of pregnancies. Feed her a high-quality forage diet with the same amounts as before pregnancy, but with an increase in energy to meet the demands of pregnancy in order to maintain her body condition. When it’s chilly outside, take into account the additional requirements for keeping her body in good shape and increase her ration appropriately.

Establish a deworming program with your veterinarian that is both effective and safe.

Because infectious infections can cause abortions, it is important to get up-to-date vaccinations.

Increased antibody levels in the mare’s colostrum, which in turn helps to protect the newborn foal from illness, should be delivered one month before foaling for chosen vaccinations.

  • Remember, nature has created a marvelous system of birth in the mare, which you should take use of.
  • Mares, as opposed to cattle, have a lower incidence of problematic births than cattle.
  • The average duration of a mare’s pregnancy is 338 to 343 days.
  • Mares appear to have some control over their delivery and prefer to give birth in the seclusion of their own homes at night.
  • Your mare will require a clean, safe, and peaceful environment in which to give birth.
  • If not, she will want a stall that is spacious enough for her to lay down comfortably with space on both ends.
  • If a stall with a floor that can be easily cleaned and disinfected is available, utilize that one instead.

When it comes to bedding, fresh bright straw or fresh grass hay is preferred than shavings.

Additionally, wood shavings can be a source of germs and toxins in some cases.

A number of factors can contribute to excessively protracted pregnancies, all of which should be examined.

The viability of the unborn foal may be determined by your veterinarian using ultrasound technology, just as it is with human newborns.

When a foal is born, it is critical that the foal nurse colostrum during the first 12 hours of its life.

Without sufficient colostrum, the foal is at higher risk of infection.

Additionally, the serum of the foal can be analyzed between 18 and 24 hours of age to determine IgG antibody levels.

If given before 24 hours of age, colostrum from a tested resident mare can make a significant difference in the foal’s survival. Here are some important factors to remember, as well as when to contact your veterinarian:

  • If your mare begins to produce milk before the 320th day of pregnancy, she is considered pre-mature. If your mare does not have a filling udder (colostrum) within one week of her due date, you should contact your veterinarian. If the mare produces milk regularly for more than three to four days before to foaling, the mare is considered pregnant. If severe labor (pushing) continues for more than 20 minutes without any indication of the foal erupting from the vulva, the foal is considered to be in distress. If the feet are presented with the soles up, the front feet and nose should be the first to be exhibited. A word of caution: Premature placental separation, sometimes known as “red bag,” need prompt medical intervention. Break (tear or securely cut) the bag extending from your mare’s vulva and covering the foal’s feet immediately if it is velvety red instead of milky white. Otherwise, the foal will suffocate within minutes if the bag is not broken or safely cut. Once the foal has been born, contact your doctor. If the placenta is not expelled within three to six hours of the baby’s birth, the baby will be born prematurely. The foal does not rise within one hour of birth, suckle within two to three hours of birth, or pass meconium (first stool) within one hour after rising and having an enema
  • This is considered a failure to thrive. To finish up, have your veterinarian examine the mare, the foal, and the placenta around 24 hours after the delivery to see if there are any symptoms of problems.

OSU’s College of Veterinary Medicine Ranch provides foaling services for owners who want a break from the stress or when nature takes a turn for the worst. This is a service that other North American veterinary institutions do not provide. Maternity mares and their unborn foals are monitored by senior clinicians and fourth-year veterinary students during the late stages of pregnancy, utilizing ultrasonography and udder secretions. During the last stages of the mare’s pregnancy, she is kept under 24-hour surveillance, which includes closed-circuit television, until her kid is born successfully.

  • Horse owners and the horse business in Oklahoma and the surrounding areas have found the ranch foaling program to be a highly useful instrument in the training of future veterinarians, as well as a vital resource for future veterinarians.
  • Oklahoma State University College of Veterinary Medicine |
  • a little about the author: G.
  • ACT, is a professor at the Oklahoma State University College of Veterinary Medicine and holds the Bullock Equine Reproduction Endowed Professorship, which he received from the Bullock family.
  • The professors of the Ohio State University Veterinary Medical Hospital contribute to Veterinary Viewpoints.
  • To schedule an appointment or for additional information, call 405-744-7000.

Mare – Wikipedia

A broodmare is a female stallion. Take note of the modest distension in the abdomen, which indicates either early pregnancy or recent foaling. Amare is a female horse or other equine that is above the age of one. In most circumstances, a mare is a female horse older than three years old, while an afilly is a female horse younger than three years old. A mare is described as a female horse that is more than four years old in thoroughbred horse racing. The term “jenny” can also be applied to other female equine animals, such as mules and zebras, but a female donkey is more commonly referred to as a “jenny.” A broodmare is a mare that is utilized for breeding purposes.

Reproductive cycle

A foal that is breastfeeding. It is common for domesticated mares to nurse their foals for an average of four to six months, with some mares nursing for longer periods of time depending on human management decisions and the temperament of the particular mare. The mare’s reproductive organs are called ovaries. (advantageous vantage point) Mares carry their young (known as foals) for roughly 11 months from the time of conception to the time of delivery. (The average period is 320–370 days.) Twins are extremely unusual and usually just one child is born.

  1. It is believed that a mare’s estrous cycle, often known as “season” or “heat,” occurs approximately every 19–22 days and occurs from early spring through fall.
  2. The photoperiod (the duration of the day) regulates the reproductive cycle in mares, with the cycle being initiated as the days begin to become longer.
  3. Due to the fact that she would foal during the hardest portion of the year, anestrus prevents the mare from becoming pregnant during the winter months.
  4. Many breeders want foals to be born as early in the year as feasible, as the majority of competitive objectives need foals to have an official “birthday” on January 1 (August 1 in the Southern hemisphere).
  5. The area of endurance riding is an exception to this general norm, since horses must be 60 genuine calendar months old (5 years) before they may compete over greater distances in this sport.
  6. However, they should not be bred until they have reached the point when they have stopped growing, which is normally by the age of four or five.
  7. Many mares are retained for riding and so are not bred on an annual basis.
  8. Aside from that, some mares grow worried when separated from their foals, even for a short period of time, and are therefore difficult to handle under saddle until their foals are weaned.

An illustration of a cross-section of the birthing process, albeit the foal in the womb has one leg back, which illustrates a difficult birthing situation.


Mares are often believed to be less difficult to handle than stallions. However, because geldings exhibit little to no hormone-driven behavioural patterns, they are occasionally favoured above both mares and stallions. Mares have a well-deserved, if not entirely unjustified, reputation for being “marish,” which means that they can be grumpy or uncooperative when the breeding season starts up. When in heat, some mares may be a little more distractible or irritable than other mares; nonetheless, they are significantly less readily distracted than a stallion at any other time of year.

  1. Mares are occasionally placed on hormone therapy, such as the medication Regumate, in order to assist manage their hormonally driven behavior for competitive goals, such as breeding.
  2. Regarding maternal behavior, the creation of the relationship between a mare and her foal “occurs during the first few hours after birth, but that of the foal to its mother takes place over a period of days,” according to the researchers.
  3. Mares, on the other hand, are likely to be a little more territorial than geldings, despite the fact that they are significantly less territorial than stallions.
  4. A study conducted on a herd found that when the “boss mare” is in command, the surviving animals relax for longer periods of time and appear more at ease than when the herd is headed by a gelding, which is contrary to popular belief.
  5. She is the one who eats and drinks first, and she is the one who chooses when and where the herd will go.
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Horse mares are used in almost every type of equestrian sport, and they compete on an equal footing with stallions and geldings in the vast majority of competitions. However, some competitions may offer classes that are only open to one sexe of horse or another, particularly inbred or “in-hand” conformation classes. Unlike in other sports, mares and fillies compete in their own races and only a tiny fraction of them compete against male horses in racing. However, a few fillies and mares have taken first place in classic horse races against colts, including the Prix de l’Arc de Triomphe, the Kentucky Derby, the Preakness Stakes, the Belmont Stakes, the Melbourne Cup, and the Breeders’ Cup Classic (in the United Kingdom).

Known as askumis in Kyrgyzstan, fermented mare’s milk is the country’s national beverage.

In the hormonal medication Premarin (derived from Pre gnant mares’ urine), the active component is extracted from the urine of pregnant mares.

Due to the fact that stallions would nicker at the horses of opposing camps, the Bedouin nomads of the Arabian peninsula preferred mares on their raids in the past, mares were favored on their raids today.

While some cultures favor male horses over mares, others do so because they want a fighting animal that will fight more aggressively or because they do not want to be inconvenienced by a mare’s loss of work abilities throughout her reproductive cycle (pregnancy, birth, and breastfeeding).


Before the year 900, the wordmare, which meant “female horse,” acquired on a number of other meanings. InOld English, the masculine forms weremere andmereormre, and the feminine forms wereearh (horse). The wordMähre was originally written in Old German. In a similar vein, the term wasmarc in Irish and Gaelic, the word march in Welsh, the word margh in Cornish, and the word marc’h in Breton. The term is “said to be of Gaulish origin,” according to the dictionary. A number of writers claim that it derives from the Proto-Germanic* word marhij (which means “female horse”), from the Proto-Germanic word marhaz (which means “horse”), and from the Proto-Indo-European* word markos (“horse”).

An intriguing suggestion, on the other hand, connects these Indo-European terms to the Mongolian word моp (mori, horse).

An example of a derived phrase is amare’s nest, which may be defined as “excitement about something that does not exist.” No clear etymological connection exists between the phrase nightmare and the word for female horse, but rather between the name and homophones that signified “incubus” or “goblin.”

See also

  • Stallion (horse), Gelding (horse), Filly, Foal (horse), Colt (horse)
  • Horse breeding


  1. It is written as “Oxford Dictionaries | The World’s Most Trusted Dictionary Provider.” Oxford Dictionaries is the world’s most trusted dictionary provider. The original version of this article was archived on September 29, 2007. 156
  2. Ensminger, M. E.Horses and Horsemanship: Animal Agriculture Series.Sixth Edition. Interstate Publishers, 1990.ISBN0-8134-2883-1p. 150
  3. Ensminger, M. E.Horses and Horsemanship: Animal Agriculture Series.Sixth Edition. Interstate Publishers, 1990.ISBN0-8134-2883-1p. 149-150
  4. (2002). “The establishment and disintegration of the mare–foal relationship.” Applied Animal Behaviour Science.78(2–4): 319–328.doi: 10.1016/S0168-1591(02)00111-9
  5. “Archived copy.” Applied Animal Behaviour Science.78(2–4): 319–328.doi: 10.1016/S0168-1591(02)00111-9
  6. “Archived copy.” The original version of this article was published on September 5, 2009. Archived copy as title (CS1 maint: archived copy as title) retrieved on 2009-09-30. (link) Mare has a variety of meanings, as well as etymological roots. abcdefEtymology OnLine is a website that was viewed on September 30, 2009. Archived 2007-12-14 at the Wayback Machine, accessed November 25, 2007
  7. Vries, Jan de
  8. Archived 2007-12-14 at the Wayback Machine (April 28, 1977). This book is called “Altnordisches etymologisches Wörterbuch.” Through Google Books, I discovered Brewer, Warren A. (1984), who wrote on Latin equa’mare’ and its resistance to replacement. JSTOR40848753
  9. AbWiktionary entry for Mongolian моp (mori, horse)
  10. AbArticle”Of horse riding and Old Sinitic reconstructions”on Language Log at the University of Pennsylvania
  11. AbArticle”Mare, m, and other words”on Language Log at the University of Pennsylvania
  12. AbWiktionary entry for Mongolian

What to Expect When Your Mare is Expecting

A few fundamentals of equine reproduction and pregnancy include mating, the gestation period, and foaling, among other things. In most cases, a mare (or female horse) can produce one viable foal every year on average. An adult mare is capable of delivering afoalat at the age of around 18 months, but it is healthier if the mare is at least four years old, since she will have grown to her maximum size by that time. A mare can produce offspring until she is in her late thirties, if she is in good health.

Average Gestation Period

When it comes to horses, the gestation period is normally between 330 and 345 days, or 11 months. A breeder’s ability to recognize if a mare is more likely to foal earlier or later than the norm is essential for success in the breeding industry. In a natural context, the stallion will breed the mare in the summer, and the foals will be born the next year, either in the spring or early summer of the following year. This guarantees that the foals are born when there is plenty of forage and the weather is moderate, which is ideal for raising them.

These seasonal estrus cycles occur typically every three weeks during the spring and summer.

Because of the artificial sunshine, the mare’s brain is stimulated, causing it to release the reproductive hormones necessary to induce estrus. This enables mares to be mated earlier in the year, resulting in a foal being born sooner the following year.

Checking For Pregnancy

Mares may not display any obvious indicators of pregnancy during the first three months of their pregnancy, other from the absence of an estrus cycle. Ultrasound can be used to confirm pregnancy roughly two weeks following the breeding event. Two to three months after conception, blood and urine tests can be performed to confirm the pregnancy. Instead, a veterinarian may be able to feel the little embryo in the mare’s uterus physically by rectal palpation at roughly six weeks into the pregnancy, and in some cases even sooner.

Horse twins are extremely unusual, however they have been known to cause spontaneous abortions.

As a result, it is frequently suggested to “pinch off” one embryo at a time.

It is not uncommon for a mare to miscarry her pregnancy, and it is advised that she get an ultrasound and have her blood or urine tested again after around three months.

Later Stages of Gestation

After around three months, the foal will be growing fast and will begin to resemble a little horse. After around six months, the mare may begin to show signs of pregnancy. Mares that have already given birth may exhibit signs of an enlarged abdomen more quickly than a virgin mare. While still pregnant, the mare’s abdomen will continue to develop in size as the foal near the time of foaling or the due date for birth. The mare’s udder will begin to develop around three to six weeks before the due date, and the teats will begin to produce a sticky yellowish fluid a few days before the due date of the birth.

  1. If the yellowish fluid is allowed to ferment, it will transform into the first milk or colostrum.
  2. It is possible that her stomach will appear to lower as the foal aligns itself for delivery.
  3. The mare will appear restless shortly before giving birth; she may paw the ground or continually glance toward her flank (hip) area on either side (similar tocolic symptoms).
  4. The mare may lie down and rise up several times, but she will most likely give birth while lying down on the ground.
  5. At this point, the foal is usually born within a few minutes after being conceived.
  6. Sometimes a mare or foal gets damaged during the birthing process, or the mare or foal may be suffering from another problem that needs immediate or expert treatment.
  7. This is a life-threatening situation that cannot be postponed (not even for the arrival of the vet).
  8. The foal should be protected by this membrane.
  9. The placenta is responsible for supplying the foal with oxygen, and if it is prematurely removed before the foal is able to breathe on its own, the foal will be deprived of this vital source of nutrition.
  10. In such instances, every second matters, and the mare must be physically aided in the birth of the foal, and the’red bag’ must be burst as soon as possible to allow the foal to take its first breath.
  11. If you have any reason to believe your pet is unwell, contact your veterinarian immediately.

Always consult your veterinarian for health-related inquiries, since they have evaluated your pet and are familiar with the pet’s medical history, and they can provide the most appropriate suggestions for your pet.

How to Tell if Your Mare is Pregnant and Why It’s Important

After around three months, the foal will be growing swiftly and will begin to resemble a miniature horse. The mare may begin to show signs of pregnancy after around six months. Previously bred mares are more likely than virgin mares to display signs of an enlarged abdomen sooner than they are bred. The mare’s abdomen will continue to develop over the next few months as the foal approaches the time of foaling or due date. The mare’s udder will begin to develop around three to six weeks before the due date, and the teats will begin to produce a sticky yellowish fluid a few days before the due day.

  • If the yellowish fluid is allowed to ferment, it will eventually develop into the first milk or colostrum.
  • In preparation for giving delivery, her stomach may appear to decrease.
  • Shortly before giving birth, the mare will appear restless; she may paw the ground or continually glance toward her flank (hip) area on either side of her body (similar tocolic symptoms).
  • However, the mare will most likely give birth when lying down, rather than standing up.
  • At this point, the foal is usually born within a few minutes of the mother’s arrival.
  • Occasionally, a mare or foal gets damaged during the birthing process, or the mare or foal may be suffering from another problem that needs immediate or expert care.
  • We are dealing with a life-threatening situation that cannot be ignored (not even for the arrival of the vet).
  • In order for the foal to be protected, this membrane must be present.
  • As previously said, the placenta is responsible for providing oxygen to the foal, and if it is prematurely removed before the foal is able to breathe on its own, the foal will be deprived of oxygen.
  • It is critical to act quickly in such situations, and the mare must be physically supported throughout the birth of the foal, with the’red bag’ being burst as soon as possible to allow the baby to breathe.
  • If you have any reason to believe your pet is unwell, contact your veterinarian immediately for advice and treatment.

Always consult your veterinarian for health-related inquiries, since they have evaluated your pet and are familiar with the pet’s medical history, and they can provide the most appropriate suggestions for your pet’s needs and circumstances.

How to Tell If Your Mare is In Foal and Why It’s Important

In order to be certain your mare is in foal and that the pregnancy is healthy, you must have her inspected by a veterinarian, ideally one who has experience with horse reproduction in general. Approximately fourteen to eighteen days after the mare has been bred, this procedure should be carried out. The veterinarian can now establish whether or not the mare is pregnant twins at this time. Re-absorption and spontaneous abortions in horses are caused by twin pregnancies, which are a common occurrence.

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Despite the fact that it appears harsh, the likelihood of a mare successfully delivering vigorous twin foals is quite low.

Because you’ll know whether or not the pregnancy is healthy early on and how far along it is, you’ll be able to tell if things are proceeding properly or if there are indicators that an abortion may be necessary.

Care and Feeding for Pregnant Mares

You want to know whether your mare is in foal as soon as possible since your feeding and management of her care may need to vary somewhat if she is. The best hay or pasture, as well as salt and minerals, will be necessary for your mare’s nutritional needs. If your pasture grass contains fescues, you may want to consider removing the mare and allowing her to graze somewhere else instead. In order to protect your mare from pasture bullies who might damage her and make the foaling process more difficult for her, you may wish to isolate her from them.

The development of the fetus can be affected by some immunizations and parasite control drugs.

Having your mare thoroughly inspected by a veterinarian does cost money, but the expense is insignificant when compared to the entire cost of raising a foal—or the cost of losing a foal or the mare in the first place.

It is true that rearing a foal might be one of the more expensive methods of producing another horse!

Improper Assumptions About Mare Pregnancy

  • Your mare’s pregnancy should be detected early on since your feeding regimen and management of her care may need to be adjusted somewhat if she is in labor. The best hay or pasture, as well as salt and minerals, will be necessary for your mare’s nutritional requirements. The mare may need to be moved if the pasture grass contains fescues, in which case she should be let to graze somewhere else. In order to protect your mare from pasture bullies who may hurt her and make the foaling process more difficult for her, you may wish to isolate her from them. It is critical to maintain a regular vaccination and deworming regimen throughout the pregnancy, however your mare should not take these treatments during the first three months of her pregnancy. The development of the fetus can be affected by several immunizations and parasite control drugs. Advice on which drugs are safe to provide to your pregnant mare during her pregnancy should be sought from your veterinarian. Having your mare professionally inspected by a veterinarian does cost money, but the expense is insignificant when compared to the entire cost of raising a foal—or the cost of losing a foal or the mare in the process. When it comes to buying another horse, breeding a mare is not the most cost-effective option. Raising a foal, in fact, can be one of the most expensive methods of producing another horse.

If you have any reason to believe your pet is unwell, contact your veterinarian immediately. Always consult your veterinarian for health-related inquiries, since they have evaluated your pet and are familiar with the pet’s medical history, and they can provide the most appropriate suggestions for your pet.

Pregnant Mares

Submitted by DVM, DACT Atwood C. Asbury Earlier this week, your doctor informed you that the mare from which you have always wanted to breed a foal has been deemed pregnant. Now all you have to do is wait around 11 months to see what she produces, correct? Not so fast, my friend! If you want your foal to have the best chance of being born healthy, there is much more to it than simply waiting. Your first priority should be to keep the pregnancy that has just been discovered. Early embryonic loss occurred at a rate of nine percent in young, fertile mares by Day 14 after fertilization, according to Barry Ball, DVM, PhD, Dipl.

  • Early embryonic loss occurred at a rate of more than 60 percent in aged, sub-fertile mares during the same time period.
  • Is it possible to prevent early embryonic loss?
  • Progesterone causes the cervix to remain tightly closed, the uterus to remain firm, and it aids in the prevention of the production of prostaglandins (pain-causing substances) (hormones that arise from inflammation in the uterus).
  • It is costly, it has the potential to be hazardous to handlers, and it is often unneeded in many situations.
  • Early pregnancy loss that occurs on a regular basis should be taken seriously, and your veterinarian should be consulted.
  • Reduce stress by avoiding abrupt feed changes, extremes in exposure to adverse weather, threatening dogs chasing the horses, loud noises, and other sources of anxiety for the horses.
  • Mares who are pregnant require additional care.

The placenta of the equine does not allow the transmission of maternal antibodies to the fetus.

As a result, it is critical to have a carefully planned immunization program during pregnancy.

Low antibody concentrations, premature lactation and loss of antibodies, and the foal’s inability to suckle are all issues that can arise during colostral transfer of immunity, according to the CDC.

There is a relationship between low IgG levels and susceptibility to infection.

Mare HealthPregnant mares should gain weight moderately during pregnancy and have a natural glow to their coats, according to the American Horse Society.

Any discharge from the vulva necessitates an appointment with your veterinarian.

Examine the udder for signs of premature lactation.

Those are factors that have evolved over time.

Should we keep an eye on all of the newborns?

However, when problems do arise, they are frequently severe, and prompt attention can make a significant difference.

One final piece of advice: Be on the lookout for the late-pregnancy mare who will attempt to eat all of the hay that has been put out for her and three or four other mares.

This is particularly bad news during pregnancy because the abdominal pressure experienced during pregnancy can cause ruptures in the large bowel and cecum.

Horse breeding is, at its best, an art form that allows for minor modifications to the natural environment.

The satisfaction of witnessing a foal being born, standing, growing, and competing is more than adequate compensation for a breeder in this situation. The Horsemagazine, an AAEP Media Partner, provided this article for the AAEP Forum.

Pregnant Mare

Posted bynovagianton on Medium. This entry was posted inEquine Articles. As she approaches near to foaling, I’m becoming increasingly concerned about the health of my favorite riding mare, which was bred last spring. I’ve never worked with a pregnant mare before, and I don’t want to make a mistake this time! Any recommendations on what I should do to prepare, as well as an outline of what should happen when she begins to foal, would be very appreciated. Answer: First and foremost, congrats on your future addition, and I hope that everything goes smoothly for you.

  • You should expect a foal approximately 11 months after your mare’s last breeding, however the gestation period might last anywhere between 320 and 360 days, depending on her breeding date.
  • You should relocate her to the location where you intend to foal her out at this time so that her immune system has enough time to respond to the new antigens (germs) in the environment before foaling her.
  • The timing of your mare’s vaccinations is critical because she will be passing antibodies to her foal if she does not have all of her annual vaccinations during this time period.
  • In terms of timing, you should expect your mare’s udder to start growing somewhere between 4-6 weeks before she is due to give birth.
  • The muscles in the mare’s rear end will begin to relax a few days before she gives birth.
  • The teats themselves will get engorged with milk anywhere from 4-6 days prior to parturition (delivery), and finally, a process known as “waxing” will take place when a yellowish secretion (colostrum) builds up and drips from the udder when your mare is within a day or two of foaling.
  • It is possible to employ a variety of stall-side items, all of which will have instructions on how to use them and how to interpret the findings.

It is possible to separate the process of foaling into three stages.

During this period, it is best to leave your horse alone because horses tend to like to give birth in solitude, and intervening too frequently might cause the process to be prolonged.

This is the stage where time is of the importance, as stage 2 concludes with the delivery of a fully developed foal and should only last 15-30 minutes.

For the most part, foals are born head first, with their backs facing up and their front legs extending beneath their chin (much like a nose dive).

During this time period, there is another type of emergency that might occur known as a “red bag delivery.” Premature placental separation leads in the foal losing its oxygen supply, which is the outcome of this ailment.

If you observe this, break up the membrane as soon as possible to provide the foal with access to oxygen.

The mare’s placenta is removed from her body when the foal is placed on the ground in stage three of the pregnancy.

It is deemed retained after three hours and can create major difficulties for your mare, such as infection or laminitis, if it is not removed as soon as possible.

This is another case that requires prompt veterinary attention. Stay up for a continuation of this article in next month’s Ask the Vet section, which will cover what to expect and what to look out for throughout the first 24 hours of your new foals existence.

Horse terminology Flashcards

Term Definition a fully matured female horse
Term Definition a female horse under the age of 4 that has yet to foal
Term Definition a male horse under the age of 4
Term Definition A young horse especially under the age of one, or still nursing a Mare. Either Colt or Filly
Term Definition
Term Definition a young horse under 1 year of age that has been removed or weaned from its mother (dam)
Term Definition a term that means a mare was bred by a stallion
Term Definition
Term Definition
Term Definition
Term Short yearling/Long yearling Definitionshort yearling is a yearling horse that is just turned a year old. A long yearling is a horse that is closer to two than one year old. Note: registered horses change age with new calendar year, not on their birthdate. For example, a foal born in january and a foal born in august will be considered the same “age” in january when they are called yearlings.
Term Definition this term is used with race horses and is a horse that has never won a race
Term Definition female equine over two years of age that has not been covered by a stallion. The term filly could also be used with the female that is 2 or 3 years of age
Term Definition a mare that has had foals previously but is not pregnant now
Term Definition
Term Definition To remove the testicles of a male
Term Definition A male horse that has its testicles and has not been castrated.
Term Definition failure of one testicle (unilateral) or both testicles (bilateral) to descend into the scrotum.
Term Definition What horses do in response to several stimuli. Most frequently this response can be seen in stallions when they smell the urine of a am mare in heat. This response can also be seen in response to other smells as it allows the horse to clearly smell, analyze and process the scent. The lifting of the upper lip helps a horse more clearly smell, analyze, and process a scent in their environment.
Term Definition a male in which the testis descend into the inquinal canal but not into the scrotum.
Term Definition time during the estrous cycle when the mare is receptive to the stallion.
Term Definition the time during the estrous cycle when the mare is not receptive to the stallion.
Term Definition the entire cycle including estrus and diestrus.
Term Definition a phase where the mare is not showing an estrous cycle. Typically associated with the winter season.
Term Definition A mare bred several cycles in a season without pregnancy or lost pregnancy
Term Definition made of rope, nylon or leather. Used to catch and lead horse
Term Definition typically considered to be an equine over 14.2 hands
Term Definition typically considered to be an equine equal to or shorter than 14.2 hands
Term Definitionmeasurement used to calculate horse height. Equal to 4 inches. Measured vertically from withers to ground.
Term Definition an obsessive-compulsive behavior horses exhibit by grabbing a stationary object (fence rail) with the top teeth, extending the neck by pulling backwards, while swallowing air and grunting. It is thought this activity releases brain chemicals that make the horse feel better.
Term Definition
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How Long Is a Horse Pregnant? (Symptoms & Stages)

In humans, pregnancy is always considered to be a fragile state, and there is no substantial difference between humans and animals. When it comes to horses, such an attitude is based on mares’ comparatively poor reproductive performance when compared to the performance of other domestic animals in the same environment. As a responsible owner, you can ensure that your mare’s pregnancy progresses as smoothly as possible by paying close attention to her and providing her with extra care. However, regardless of whether you produce these gorgeous creatures for pleasure or for show, the most important issue to ask is how long a horse may be pregnant for.

The Ideal Age for Breeding Mares

When a mare is 18 months old, she has the potential to get pregnant. The best age for breeding is still when the animal reaches the age of at least four years. Premature breeding can have negative repercussions for a mare’s health and well-being. As a result, it is preferable to wait until it has reached full maturity. Furthermore, there is no necessity to begin breeding too early, as female horses can get pregnant until they are in their late twenties.

Seasonal Polyestrous

The mare is a seasonal polyestrous mare, which means she has two periods each year. Although it may appear confusing, it simply implies that mares go into heat (estrus) only from the beginning of spring through the end of summer or the beginning of October. During this time, horses are sexually receptive and fertile every three weeks, and they are able to reproduce. The fact that the seasons have an effect on pregnancy makes tracking these cycles essential since it has an impact on the intended breeding.

Those who are conceived during the spring and summer, on the other hand, nearly generally have shorter pregnancies.

The thinner and smaller mare will be able to bear the foal for a longer period of time than the bigger mare.

How to get the mare into heat earlier and the foals to be born earlier in the year is accomplished in this manner.

Pregnancy Check

The lack of estrus is the first symptom that a woman is pregnant. The chances of your mare becoming pregnant are high if you have bred her and she has not gone into estrus within three weeks of breeding. You should be aware, however, that certain mares might display indications of estrus even after pregnancy, so you must use caution when breeding them. As early as two weeks after breeding, you may call a veterinarian to have your mare’s pregnancy confirmed by ultrasound. This is one of the most reliable methods.

Following conception, a blood and urine test are performed to determine whether or not a woman is pregnant.

Please keep in mind that because some mares do not exhibit any indications of pregnancy, it is conceivable that the owner will only discover the pregnancy a few hours before the scheduled delivery.

False pregnancies in horses, on the other hand, are prevalent, so you should pay close attention to your mare’s behavior. If it exhibits one or more of the typical indications, it is recommended to get it examined by a veterinarian.

Horse Pregnancy

The average length of a mare’s pregnancy is 320 to 380 days (10 to 11 months). As a result, a mare can only have one pregnancy each year due to these factors. It will go through three trimesters in all, about.

The first trimester

The average length of a mare’s pregnancy is 320 to 380 days, depending on the breed (10 to 11 months). A mare may only have one pregnancy each year as a result of these limitations. It will go through three trimesters in all, according to the schedule.

The second trimester

It begins somewhere around day 114. As the foal grows fast during this stage, the mare will want more food and larger amounts in order to keep up with the growing foal.

The third trimester

Finally, this period will begin roughly 226 days after the conception of the child. It is critical to regularly check your mare’s health and to discontinue training her after the seventh month of her life. As the day of your horse’s birth approaches, it is critical that you avoid making any big changes because this can be stressful and upsetting for your horse.

Pregnant Horse Care

Many parts of your mare’s care will stay the same as they were before she became pregnant. Light physical exercise is recommended during the first month following conception since this phase is critical for the foal’s survival. Aside from that, mild training is one of the most effective methods of preparing your mare for birth. You can even ride your horse up until the sixth month of your pregnancy if you want to. You can resume this exercise as soon as your body has recovered after giving delivery.

During this time, most foals acquire a couple pounds every day on average.

During pregnancy, keep in mind that the mare is more susceptible to illness than usual.

Twin Pregnancy

In rare instances, a mare can get pregnant with twins, however the majority of the twins’ foals will not survive owing to difficulties. Once the veterinarian has determined that your mare is carrying twins, he or she can remove one of the embryos to give the other a better chance of survival. During the first two months of her pregnancy, a mare with twins has a 95 percent probability of rejecting one or both of the embryos she has produced. Delaying the next pregnancy by waiting for this to happen naturally is not a smart idea since it will prolong the next pregnancy.

If this is not done, foals will most likely be delivered early and with health problems. Despite the fact that multiple occurrences of mares giving birth to healthy twins have been documented, it is nevertheless recommended that you visit a veterinarian if this occurs.

Premature and Overdue Foal

It is unlikely that the foal will survive if it is born before the 300-day mark. The animal’s respiratory system, on the other hand, is not fully developed and will remain dysfunctional. Placentitis is a condition that might affect the mare from time to time. It results in a shortened pregnancy and a foal that is undeveloped and hence unlikely to survive. Veterinary hospitals frequently treat foals born between 300 and 320 days old that require neonatal critical care. The good news is that it will almost certainly live if you give high-quality upkeep.

  1. In most cases, there will be no issues, save that it may be less than anticipated.
  2. It is widespread in rural areas where mares graze on fescue pasture or are given fescue hay, as well as in certain urban areas.
  3. As a result, it is suggested that it be removed from the mare’s diet two to three months before she gives birth to her foal.
  4. Otherwise, most veterinarians would not perform this treatment since it poses a threat to the foal’s life and health, according to the ASPCA.

Labour and Delivery

In the wild, mares give birth to their foals at night in greater than 85 percent of cases. The explanation for this is most likely due to the amount of time a foal need to adjust to new settings until the morning. Be prepared for the mare to get disturbed during the initial stage of labor, refusing food and drink, walking in a circle, and alternatively lying down and standing up, among other things. There are three stages to the delivery process:


The mare’s tail should be wrapped to keep the perineal region clean. This is the most prolonged phase of the storm and can run anywhere from 30 minutes to six hours in duration. For older mares, the tail is normally shorter. This period will be completed after the mare’s water breaks.

Fetus expulsion

The second phase of labor is shorter than the first, however an upset mare might cause the delivery to be delayed for a brief period of time. As a result, you should keep noise levels to a bare minimum and avoid upsetting it. As soon as the contractions begin, the mare has the option of standing or lying down. When the birthing process begins, it will, however, be on its side. It takes around an hour for a firstborn mare to remove the fetus, but an older mare takes approximately 12 to 18 minutes.

Afterbirth placenta delivering

While blood is still flowing via the umbilical cord, the mare will lie on her side for an additional 15 to 20 minutes following the delivery of her foal. As a result, it is suggested that you do not trim it immediately after giving birth. It is recommended that you avoid approaching the foal for the following several hours since they have a strong protective instinct and can be aggressive towards people if approached. After one hour, the foal should stand up and begin sucking.

After two hours, the foal should begin sucking. In most cases, the mare does not require postpartum care. Veterinary assistance is required if the placenta does not pass within three hours. The mare’s life is in risk if this does not happen.


A horse can be pregnant for up to eleven months in most cases. An otherwise healthy foal may be born to a mare before or after the scheduled delivery date. Under order to achieve a risk-free delivery and a healthy foal in such circumstances, it is important to give your mare with the right care.

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