Here's a breakdown:
* Mare's estrous cycle: A mare's estrous cycle lasts about 21 days.
* Seasonality: Mares are typically in season (estrus) from March to October in the Northern Hemisphere. However, this can vary depending on factors like latitude, breed, and individual mare characteristics.
* Estrus duration: Estrus, the period when the mare is receptive to mating, lasts for around 5-7 days within each cycle.
* Foaling season: Mares generally foal in the spring, approximately 11 months after conception, aligning with the natural breeding season.
It's important to note that some breeds, like Quarter Horses, may have a shorter breeding season, while others, like Thoroughbreds, may have a longer one.
To determine if a mare is in season, breeders look for signs like:
* Restlessness: Mare may show signs of restlessness, pacing, or pawing the ground.
* Vulvar swelling: The vulva may become swollen and have a reddish appearance.
* Mucous discharge: A clear, viscous mucous discharge may be present.
* Winking: The mare may exhibit a "winking" reflex, where the vulva slightly opens and closes.
* Accepting the stallion: The mare may accept the stallion's advances and stand for breeding.
If you are interested in breeding horses, consulting with a veterinarian or experienced breeder is essential for proper management and understanding of the mare's reproductive cycle.