Horse breeding is natural, but not all horses are meant to be bred. In order for two to make three we need a stallion (male) and a mare (female) which mate. A mare can only be bred with when she is in season. If the covering (mating) is successful she will give birth to a foal (baby) ten months later.
If you are interested in breeding for what ever personal reason, the best place to begin is with a sound, healthy horse. Generally the stallion owner offers his horses services during the breeding season for a fee. If you want to make money breeding then you certainly need to own a stallion that has good bloodlines, good conformation and temperament.
Those three aspects are essential ingredients for breeding. A mare has a little more elbow room in her requirements. This is only because she is going to produce a single foal per year, whereas a stallion is bred to around 40 mares per season with live cover and a lot more when using artificial insemination.
The resulting foal is definitely a combination of mare and stallion qualities, the stallion does not have more influence in the gene pool. You do not need a top competing mare in order for you to breed for a foal. Any horse owner with a mare can choose to breed.
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