How Do Horses Mate? The Surprising Truth About Horse Reproduction

Do you know how horses mate? It’s a process that is much more complex than you might think. In this blog post, we will explore the fascinating world of horse reproduction. We will answer the question of how horses mate and discuss the different stages of the mating process. So, if you’re curious about horse breeding, keep reading!

How horses mate – the basics

All horses are members of the family Equidae, which includes donkeys, mules, and zebras. Within this family, there are two distinct subspecies: the wild horse and the domestic horse. The majority of horses today are domesticated, but there is a small population of wild horses that still roam free in parts of the world.

The process of how horses mate begins with the males, or stallions, competing for the attention of a female, or mare. The strongest and most virile stallion will usually win her over and the two will then go off to breed.

Mares are only receptive to breeding during a certain time of their cycle, which is known as estrus. This usually occurs once a year, although it can vary depending on the individual mare. During estrus, the mare’s body will go through a number of changes to prepare for pregnancy.

Once the stallion and mare are ready to breed, the actual act of mating takes place. The stallion will approach the mare from behind and mount her. He will then insert his penis into her vagina and release his sperm. The mare’s eggs will be fertilized by the stallion’s sperm and she will become pregnant.

When Do Horses Mate?

Most horses only breed during certain times of the year. They go into heat for the first time in the spring and stop in the summer. During the breeding season, mares go into heat every 21 days. During the first 5-7 days of their cycles, they are fertile and ready to mate. Mares’ breeding seasons start slowly, and the first cycle of the year is often unpredictable and not good for breeding. Around age 15, a mare’s cycles will slow down until they stop altogether, which usually happens between 15 and 20.

How do horses mate?

Courtship is the first step in horse mating. Males do this to attract females before they mount. When the male gets close to a fertile female, he will stand in a strong and proud way, with his neck slightly arched to show off the muscles in his chest and shoulders. He will make loud neighing sounds that are meant to attract a mate.

The most impressive part of horse courtship is the last step, which is a kind of circle dance done by the male to get the attention of the female and show what he wants. For this “courtship dance,” the male will lift his hooves very high off the ground and turn on his own axis.

If the female is interested, the male will continue his ritual by stroking her neck with his nose, gently rubbing his body against hers, and then sniffing her tail, rump, back legs, and genitalia. If the female is still interested, she will lift her tail to show that she is ready to mate, at which point the male will mount her. The courtship of a horse takes longer than mating, which only takes a few minutes.

Read our article “Why do horses neigh?” to learn more about horse sounds and how they talk.

How do horses mate 02

The reproductive process of a mare

  • Sexual maturity: Approx 18 months
  • Estrous cycle: 22 days
  • Estrus (fertile) leng: th6 to 8 days
  • Diestrus (not fertile) leng: th14 to 16 days
  • Gestation period: 340 days
  • Postpartum heat: 7 days after parturition

When the brain’s receptor centers are stimulated by more light, reproductive hormones are released. These hormones start a pattern of regular periods of estrous, or “heat.” From one time a woman ovulates to the next, this is called the estrous cycle. The average cycle lasts 22 days, but this can change by a few days at the start or end of the breeding season.

The mare’s reproductive cycle has two parts: the estrus, when the mare is interested in and receptive to the stallion, and the diestrus when the mare loses interest in being with the stallion. The diestrus begins 24 to 48 hours after ovulation and lasts 14 to 16 days.

Even though fillies are sexually mature at about 18 months, they are still growing, which may be slowed down by being pregnant. The best age to start having babies is around 4 years old. Mares can keep having babies until they are very old and usually don’t get sick if they are fed well and kept in good shape.

Estrus usually lasts between 6 and 8 days, but in the summer it may only last 4 days. Estrus keeps happening all summer, but it stops in the fall. During estrus, the pituitary gland releases a hormone that causes egg follicles in the ovary to grow and make more estrogen. This prepares the reproductive system for mating and getting pregnant. The mare’s behavior also changes because of the extra estrogen.

When the egg follicle gets close to being ready, a second hormone is released. This hormone causes the follicle to release an egg, which usually happens about 24 hours before the end of estrus. A horse’s normal pregnancy lasts about 11 months or 340 days. After 310 days of pregnancy, foals can be born early and live with intensive care. Some mares carry foals for up to three to four weeks longer than others.

Usually, the best time for a foal to be born is in May or June, when there is enough grass to feed the mare’s milk supply. For this to happen, the mare needs to have a foal between June and August.

Foaling and care of newborns

Mares are only receptive to breeding during a certain time of their cycle, which is known as estrus. This usually occurs once a year, although it can vary depending on the individual mare. During estrus, the mare’s body will go through a number of changes to prepare for pregnancy.

Once the stallion and mare are ready to breed, the actual act of mating takes place. The stallion will approach the mare from behind and mount her. He will then insert his penis into her vagina and release his sperm. The mare’s eggs will be fertilized by the stallion’s sperm and she will become pregnant.

Horse contraception methods

There are a number of different methods that can be used to prevent horses from getting pregnant. These include:

  • Use of a physical barrier such as a stud guard
  • Use of hormones to suppress the mare’s estrus cycle
  • Surgical sterilization of the mare or stallion

Each of these methods has its own advantages and disadvantages, so it is important to consult with a veterinarian to determine which method would be best for your horse.

Horse reproduction can be a complicated and sometimes difficult process. However, by understanding the basics of how horses mate and reproduce, you can help ensure that your horse has a healthy and successful pregnancy. If you have any further questions about horse reproduction, please consult with a veterinarian or other qualified equine professional.

Why Do Horses Fall After Mating

How do horses mate

For the first time

When horses mate for the first time, many of them fall down. This is normal for horses, who may be too scared of stallions who are too aggressive.

So, after mating, the horse falls down to get its energy back and let its heartbeat back to normal. When other horses give birth, they will fall.

Hormonal Disharmony

Another thing that can cause mares to fall after mating is an imbalance in their hormones. Like in people, hormones control many things in a horse’s body. So, if there is an imbalance in the horse’s hormones, it could change how the horse acts. And if the horse falls after mating, it could be because of an imbalance in hormones.

The estrous cycle is one of the things that can throw a horse’s hormones out of whack. The time when the mare is ovulating is called the estrous cycle.

Also, when the mare mates, this is the time when she can have a foal. If the mare can’t control her estrous cycle, she might fall after being bred.

If your horse doesn’t fall after mating, you should take it to a vet. But if it does, the vet will help you however they can.


Short-term stress is good for the horse because it keeps them safe. But if the stress lasts for a long time, it can have a big effect on the horse’s health and well-being as a whole.

Chronic stress happens when a horse’s levels of stress hormones rise because of something that bothers it a lot. Changes in the horse’s behavior can be caused by too much stress, which can lead to health problems.

During the time when they are reproducing, like when they are mating, horses may go through natural stress. When this happens, the horse might fall after mating as a way to react. If you don’t handle the natural stress well, it can turn into long-term stress that can affect your horse even after it has given birth.

Most of the stress that horses feel during their time of reproduction is caused by their estrus. When a mare is hot, a follicle forms on one of her ovaries. This makes her want to go to the bathroom more often.

This change in the body can cause pain and long-term stress. So, it’s important to keep a close eye on your horse when it does something out of the ordinary, like fall after mating.

A horse can also feel stressed because of where it lives, changes in how it works out, or a bad diet. Make sure your horse is comfortable so it doesn’t have to deal with more stress.


When a horse has syncope, it passes out because not enough blood is getting to its brain. It also shows that the blood pressure in the arteries is low. Most horses with this condition have problems with their hearts. A horse may pass out after mating if it has syncope or heart problems.

In addition to passing out, the horse may also have a heart attack, which can be dangerous. So, it’s very important to have your horse checked by a vet regularly.

But horses often have heart attacks when they are mating. Your horse won’t die from syncope, and he or she will wake up after a short time.

If your horse has never had syncope before, you don’t need to worry. This is because your hose may have fallen because of a sudden drop in blood pressure and not because you passed out.


Your horse may also fall because of narcolepsy after mating. Narcolepsy is a sleep disorder of the central nervous system that is unique and can’t be cured. Most of the time, sleep attacks happen at odd times. This disorder is often accompanied by a loss of muscle tone that can’t be stopped.

This disorder usually shows up when the horse is stroked too much, groomed too much, fed too much, or after mating. It can also happen when you don’t do much during the day.

But it’s also important to know that some horse breeds are more likely to get narcolepsy than others. Miniatures, Shetlands, and Suffolk punches are some of the horse breeds that are usually affected by narcolepsy.

If you see these signs in your horse before it falls, you can be sure it has narcolepsy. They include quickly moving the eye from side to side, slowly lowering the head, and closing the eyes partly.

Why Do Horses Fall After Mating

FAQs :

Do horses get together with their babies?

Stallions don’t usually want to mate with their own kids. Families that mate with each other do so because people get in the way.

Can horses and ponies have babies?

Pony and horse babies can be made. In fact, the Welsh Pony x Thoroughbred is one of the most popular combinations of a horse and a pony. A Welsh-X-Thoroughbred dog named Cappy and I is very close.

Is there a time of year when horses mate?

Horses only have babies at certain times of the year, so they do have a mating season. It goes from the beginning of spring to the end of summer.


How do horses mate? Mares start having babies every year in the early spring and late summer, which means that it is horse breeding season.

The stallion goes after the mare and mates with her at his own speed. There are differences between how wild horses are raised and how horses are raised in human care.