A breeding stock paint is a registered paint horse without paint markings. I believe it is a horse that contains no spots or significant white markings to distinguish away from it's "sister" breed the Quarter Horse. It's a horse, most likely, born from one or two painted horses that is born without any paint markings. They can have leg markings and face markings but no spots (I believe) bigger than a quarter on the rest of their body. I may not be completely correct though.
100% Anti-Slaughter and PROUD of it!