a stablehand
They are called a stable hand or a groom.
Groom
a groom
A person who takes care of the horses' feet and shoes them is called a farrier. The person is a farrier by occupation.
A guardian takes care of his/her ward.
They are called a Menagerie Man.
she takes care of horses
Having your horses teeth taken care of is called having the horses teeth floated.
Well either a farrier (takes care of horses feet) and many more. Sunny Erics Horse vet specialist.
Called "floating". Basically teeth that has worn unevenly are ground smooth.
a tree doctor
It is called a social worker
The person who takes care of pets would be called a veterinarian (a.k.a vet)
The Purser and his staff, including Stewards
Aquarist is someone who has aquariums and cares for fish