Mare

Mare is a term used in animal husbandry to refer to an adult female horse or other equine species. In most cases, a mare is a female horse over the age of three, and a filly is a female horse three and younger. In Thoroughbred horse racing, a mare is defined as a female horse more than four years old. The word can also be used for other female equine animals, particularly mules and zebras, but a female donkey is usually called a "jenny". A broodmare is a mare used for breeding. A horse's female parent is known as its dam.

An uncastrated adult male horse is called a stallion and a castrated male is a gelding. Occasionally, the term "horse" is used to designate only a male horse.

Mares carry their young (called foals) for approximately 11 months from conception to birth. Usually just one young is born; twins are rare. When a domesticated mare foals, she nurses the foal for at least four to six months before it is weaned, though mares in the wild may allow a foal to nurse for up to a year.

The estrous cycle, also known as "season" or "heat" of a mare occurs roughly every 19–22 days and occurs from early spring into autumn. Most mares enter an anestrus period during the winter and thus do not cycle in this period. Mares that are pregnant do not cycle. Mares are seasonally polyestrous.

See also:

• Stallion
• Gelding
• Filly
• Foal
• Broodmare
• Estrous cycle

Mare Resources
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