a stablehand
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
A person who takes care of fish is called an "aquarist" or a "fishkeeper." They are responsible for maintaining the health and well-being of the fish in their care by ensuring they have a suitable environment, feeding them properly, and monitoring their behavior.