Nog even het volgende inzake Thoroughbred en de Paint Horse (A.P.H.A.):
To be eligible for registry, a Paint's sire and dam must be registered
with the American Paint Horse Association, the American Quarter Horse
Association or the Jockey Club (Thoroughbreds). To be eligible for the
Regular Registry, the horse must also exhibit a minimum amount of
white hair over unpigmented skin within a prescribed zone.
A cropout is an overo whose parents were horses registered with AQHA or
the Jockey Club. Cropouts must meet APHA's color requirements to be registered in the Regular Registry. Stallions and mares that do not meet this requirement may be considered for the Breeding Stock Registry; however, geldings and horses already registered with AQHA or the Jockey Club are not allowed in the Breeding Stock Registry.
Quarter Horse cropouts may be eligible for registration with both APHA
and AQHA and referred to as "double-registered." However, the horse must meet the color requirements of both registries.
Two Thoroughbred parents may also produce a cropout foal, but the
Jockey Club has no color rule restrictions. Therefore, a foal may be double-registered with APHA and the Jockey Club if it meets APHA's color requirements.
In het Rulebook staat:
RG-015. BLOODLINE REQUIREMENT
A. Deceased horses are ineligible for registration.
B. As of January 1, 1980, all horses for which applications of
registration are submitted must have both sire and dam registered in the
APHA, APQHA, APSHA, the American Quarter Horse Association, the Jockey
Club or any foreign Thoroughbred Registry recognized by the Jockey Club
or the combination of any two of these associations. (See Rule RG-035.
B. for AQHA and Thoroughbred stallion listing requirements.) A breeder's
certificate must be furnished. (See RG-045. for details and exceptions.)
Any horses showing the characteristics or distinguishing qualities of
any other breed are subject to removal from or rejection of registration
in this Association.
Een aantal artikelen waarbij er aan Volbloed in de Quarter horse wordt gerefereerd:
http://horsesonly.com/pursuits/articles ... lmeans.htm
Een voorbeeld van een hedendaagse race Quarter horse met veel Thoroughbred in de aderen. Deze paarden zijn vaak ook heel geschikt voor de fok van performance paarden (de hedendaagse performance paarden bloedlijnen gaan ook terug op race paarden):
http://www.speedhorsemagazine.com/srfil ... avingm.pdf