It's not recommended.  Giving an injection to a squirming or nippy
animal is not easy.  Even experienced veterinarians with good
technicians sometimes get bitten.  Also, an injection in the wrong
place can injure the sciatic nerve and permanently paralyze the
ferret's leg; and in case of a bad reaction to the vaccine, a vet has
the experience and equipment on hand which may be needed to save the
ferret's life.

In addition, a licensed veterinarian's signature is required for a
rabies certificate to be legal.  The annual trip to the vet (or semi-
annual, for older ferrets) [9.4] is also the best time to have your
ferrets checked for other health problems.

Dr. Bruce Williams, DVM, adds:

    Unfortunately, vaccination are what supports the vets - sick
    animals don't.  The extra few dollars is what pays the help, and
    the electricity, what feeds the strays that are dropped off weekly
    to your vets, or the dogs that nobody bothers to pick up.  Or the
    ones that are hit by cars and dropped off by Good Samaritans.

However, if you have a lot of ferrets to be vaccinated, you may be
able to save yourself some money by purchasing the vaccines themselves
directly from the manufacturer and taking them to your vet to be used.
You save on the materials, but you still get your vet's expertise.
Check with your vet to see if he or she will work with you like this.

Some parts © 2009 Advameg, Inc.