what is their reproductive cycle like?
The cycle is controlled by the photoperiod, the cycle first triggered when the days begin to lengthen, as it shortens, the mare returns to the anestrus period.
Mare
Mares carry their young (called foals) for approximately 11 months from conception to birth. (Average range 320–370 days.) 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. As the days shorten, most mares enter an "anestrus" period during the winter and thus do not cycle in this period. The reproductive cycle in a mare is controlled by the photoperiod (length of the day), the cycle first triggered when the days begin to lengthen. As the days shorten, the mare returns to the anestrus period when she is not sexually receptive.
what is andalusian horse? A horse breed what are some characteristics of this horse? Stallions and geldings average at the withers and in weight; mares average what is its influence on other breeds? Stallions were crossed with local mares adding Spanish bloodlines wherever they went, especially to other European breeds. where did the first mentioned breed originate from? Iberian horses of Spain and Portugal what is the cultural view regarding them? UNANSWERABLE what is the first mentioned breed's herd behaviour? Do not live with a harem of mares and do not fight each other to the death in competition for mares. where did this aforementioned type originate? UNANSWERABLE what is the historic use of this harlem breed mentioned? Bedouin preferred them on their raids as they were quiet.
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Mare [SEP] Reproductive cycle
Mares carry their young (called foals) for approximately 11 months from conception to birth. (Average range 320–370 days.) 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. As the days shorten, most mares enter an "anestrus" period during the winter and thus do not cycle in this period.