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Exotics: Owning a Ferret
Ferrets can be a lot of fun, and under the right circumstances they can make wonderful pet. They are
not the same as caring for a dog or a cat, and before getting one of these playful critters you should
try to learn as much about them as possible. They are not, however, usually recommended in
household with very small children.
General Information
Ferrets come in several different color schemes: the Fitch ferret is the most popular. Fitch ferrets
have a buff colored coat with black markings on the face, feet, and tails. Albino ferrets are white with
pink eyes. Some ferrets have a buff coat with light markings.
The female ferret is called a jill, the male is a hob, and the infants are called kits.
The gestation period, or length of pregnancy, is about 42 days (compared to 60 days for dogs and
cats and 270 days for people). Like puppies and kittens, kits are born deaf and with their eyes
closed. They begin walking by about 3 weeks of age, which is also when their eyes and ears open.
By about 6 weeks of age, they are weaned onto kitten or ferret food. The average life span is 5-8
years; ferrets are considered geriatric pets at 3 years of age (compared to 8 years of age for dogs
and cats).
Ferrets can make good pets. Their diet is cat food or ferret food, and they easily learn to use a
litterbox.
They can be nippy; check with your veterinarian prior to purchasing a ferret is you have
small children.
Ferrets are escape artists and are easily able to squeeze through the tiniest openings and cracks.
Homes must be "ferret-proofed" to prevent escape and injury. Naturally inquisitive, they will chew on
and swallow many things. It is highly recommended to put a collar with a bell attached on your ferret
so that it can be easily found if it escapes your sight (make sure the bell can't be swallowed if it
becomes detached, or make sure it's firmly secured to the collar and can't easily detach). Never let
your ferret out of your sight when it's out of its cage. If you leave the room even for a minute, take the
ferret with you or put it back in its cage (carrier).
As stated above, ferrets love to chew. Rubber toys are not safe for ferrets, as they often chew
off and swallow small pieces! Diagnosis of an obstruction is often difficult in a ferret; usually the
problem is diagnosed during exploratory surgery and is often fatal if not treated early. Hard toys like
Nylabones are safe, as are rawhide treats in small amounts (although some veterinarians feel rawhide
shouldn't be given to any pets). Other safe toys include ping pong and golf balls, small cans,
cardboard mailing tubes, and very hard plastic toys. Cloth toys are all right IF the ferret is not
chewing off pieces of it!
Ferrets are usually spayed or neutered and de-scented prior to purchase. Unless you want to breed
your prospective pet, sterilization is preferred. Intact (un-neutered) male ferrets have a musky odor
and can be aggressive; female ferrets never go out of heat unless bred. This prolonged heat results in
bone marrow suppression from high levels of estrogen, which is fatal unless treated early and
aggressively with blood transfusions.
The anal sacs of ferrets secrete a foul smelling liquid, and thus de-scented ferrets (which have these
sacs removed at the time of spaying and neutering) make better pets. Even after de-scenting, ferrets
still have a slightly musky odor. Bathing can be done weekly or every other week with a gentle
moisturizing shampoo that your veterinarian recommends. Ferrets should also have their sharp claws
trimmed regularly (ask your veterinarian for instructions). Ferrets should not be declawed.
Vaccinations
Just like dogs and cats, ferrets require a series of vaccinations as youngsters. Once a year, they
also require an examination, a fecal test for internal parasites, and vaccination boosters. Once a
ferret becomes 3 years of age, it requires a complete geriatric profile (see below).
Ferrets are usually vaccinated at 8, 12, and 16 weeks of age against canine distemper. There is an
approved vaccine for rabies in ferrets. However, since many state laws vary regarding ferret bites,
some veterinarians do not vaccinate ferrets for rabies.
Anatomical Interests
According to current knowledge, ferrets lack detectable blood types and transfusion reactions would
not be expected, even without crossmatching.
Ferrets are very susceptible to hypoglycemia (low blood sugar). For this reason, they are only fasted
for a few hours (rather than overnight) prior to surgery or blood sampling.
Ferrets, like many small mammals and pocket pets, are extremely susceptible to heat stress or
stroke. The temperature must be kept below 90 degrees Fahrenheit (32 C).
Selecting Your Pet
Some areas make it illegal to own a pet ferret, due to potential attacks on people (specifically
children, as ferrets can be aggressive and nippy) and the chance of an escaped ferret becoming
established in the wild (and potentially destroying crops). If owning a ferret is legal, they can often be
purchased at pet stores or through breeders or ferret club members. Look for a young ferret (ideally).
The eyes and nose should be clear and free of any discharge that might indicate a respiratory
infection (or distemper). The ferret should be curious and inquisitive; it should not be thin and
emaciated. Check for the presence of wetness around the anus, which might indicate diarrhea.
Check for the presence of external parasites such as fleas. If possible, examine the ferret's mouth for
broken teeth, discolored gums (they should be light pink), or any obvious sores, any of which could
suggest disease. Inquire as to whether the ferret has been surgically altered (spayed or neutered) or
de-scented (had its anal sacs surgically removed); most ferrets have these operations performed by
8-12 weeks of age prior to purchase.
The First Veterinary Visit
Your ferret should be examined by a veterinarian who treats these special pets within 48 hours of
purchase (this is often required by the seller or the guarantee is voided). The doctor will discuss
proper diet, housing, and toys for the ferret. A vaccination program will be set up, a fecal sample
checked for worms, and the ferret may be started on heartworm preventative. Like dogs and cats,
ferrets require annual veterinary visits.
Once a ferret becomes 3 years old, a complete geriatric work-up, which includes an EKG, urinalysis,
blood profile, and radiographs (X-rays) is necessary for the early detection of diseases so commonly
seen in older ferrets, such as cardiomyopathy and cancer.
Copyright © Harmony Animal Hospital. Reprinted with permission.
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