Astud animal is a registered animal retained for breeding. The terms for the male of a given animal species (stallion,bull,rooster, etc.) usually imply that the animal is intact—that is, notcastrated—and therefore capable of siring offspring. A specialized vocabulary exists for de-sexed animals (gelding,steer, etc.) and those animals used in grading up to a purebred status.[1]
Stud females are generally used to breed further stud animals, but stud males may be used incrossbreeding programs.[2] Both sexes of stud animals are regularly used in artificial breeding programs.
Astud farm, inanimal husbandry, is an establishment forselective breeding using stud animals.[3] This results inartificial selection.
A stud fee is a price paid by the owner of a female animal, such as ahorse or adog, to the owner of a male animal for the right to breed to it. Service fees can range from a small amount for a local male animal of unknown breeding to several hundred thousand dollars for the right to breed a championThoroughbred race horse such asStorm Cat, who has earned stud fees of up to US $500,000.
Many owners of high-qualitystallions also offer adead foal guarantee with a breeding, usually defined as a guarantee that once themare leaves thestud farm confirmed to be in foal by aveterinarian, she will give birth to a foal that stands and nurses, or else the stud farm will re-breed the mare for no stud fee the following season.
Most stud fees do not include the costs of boarding the female animal at the location of the stud animal, or the cost ofcollecting and shipping semen ifartificial insemination is used in lieu of live cover. Any veterinary expenses or medications are also an additional cost to the owner of the female animal.