They were usually called a stable hand/groom. The two were often assigned to two different people. The person who cared for the horses was the groom. He also was assigned the job of keeping the tack in shape. The stable hand cleaned out the stalls and then added fresh straw and he also feed the horses. Often the groom was in charge of all the stable hands.
Castles have stables to keep animals and horses were so important because they needed them fr when there was an attack.
a stablehand
Having your horses teeth taken care of is called having the horses teeth floated.
A person who takes care of the horses' feet and shoes them is called a farrier. The person is a farrier by occupation.
A "livery stable" got its name from the practice of providing horses with a "livery," which referred to the feeding and care of the animals. In the past, these stables would offer rental services for horses, carriages, and also provide care for privately-owned horses.
A stable boy cleaned out the stable and help take care of the horses.
Any veterinarian can provide medical care for a horse, but most horse owners use a veterinarian who works only with horses; this person is called an equine veterinarian.
Easy Keeper
Yes, just like people horses need dental care its called equine dentistry.
Found this on the web for a Polish forum: "Mastalerz or Mastalarz - dating back to 1700's; a person taking care of horses; old-fashioned form of (stajenny) someone in charge of stables." However, the Mastaler family from St. Louis (no "z") appears to be Ukrainian. Which is not surprising.
Simple NOT
The groom (i. e., a person employed to take care of horses.)