Ferrets: An Overview of Anatomy, Care, and Health

Order: Mustelidae (includes minks, weasels, and skunks).
Scientific Name: The domestic ferret is classified as Mustela putorius furo.
Origin: Thought to have originated from the European ferret, Mustela putorius.
Varieties: Several color types exist in domestic ferrets.
Native Species: The black-footed ferret (Mustela nigripes) is native to North America.

Ferrets are friendly and inquisitive, known to be easy to house.
Can be housed singly or in groups.
Rarely bite unless frightened or in pain; females with litters can become aggressive; males may fight during breeding season.
Burrowing instincts due to poor vision; easily litter trained but require training assistance.

Housing:
- Cages modified for ferrets (used for cats, dogs, or rabbits) to prevent escape.
- Bar spacing should be small enough to avoid injury; solid bottom cages preferred.
- Nest boxes and soft towels for burrowing and hiding.
- Temperatures exceeding 80°F can cause heat stroke.
- Adequate ventilation required to reduce odors and heat buildup.
Nutrition:
- Ferrets are carnivorous; dietary needs include protein (≥30%) and low fiber (≤4%).
- Daily food intake is about 5-7% of body weight.
- Dry foods help maintain dental hygiene; hairball remedies may be necessary.
- Water provided in heavy bowls or water bottles.

Basic restraint can be achieved by cradling the ferret in the arm.
Scruffing (grasping loose skin over the back of the neck) calms many ferrets.
For invasive procedures, hold the ferret firmly across the shoulders, supporting hindquarters.
Alternative restraint: wrapping in a towel.

Injection Techniques:
- Methods include subcutaneous, intramuscular, intraperitoneal, and intravenous.
- Subcutaneous injections use loose skin over the shoulder area.
- Intramuscular injections typically done in the quadriceps; requires assistance.
- Intraperitoneal injections performed in the lower abdomen.
- Intravenous injections into cephalic, saphenous, or jugular veins; may require sedation.
Blood Collection:
- Jugular vein or anterior vena cava are suitable for blood collection.
- Lateral saphenous or cephalic veins can be used but are harder to visualize.
- Techniques similar to those for cats; emphasis on proper restraint to prevent injury.

Vaccination against canine distemper is crucial due to a near 100% mortality rate in unvaccinated ferrets.
Vaccination schedule:
- Canine distemper vaccine at 6-8 weeks, two-week intervals until three doses achieved, annual boosters.
- Rabies vaccination at three months, with annual boosters.

Canine Distemper: Highly fatal, symptoms appear 7-10 days post-exposure.
Rabies: Rare; signs similar to other mammals, routine vaccination reduces incidence.
Influenza: Susceptible to types A and B, symptoms mimic those of canine distemper.

Common bacterial infections: Helicobacter mustelae, Clostridium botulinum, Escherichia coli.
Parasitic infections include intestinal parasites and coccidia, mostly non-significant but can be present.

Neoplasia (tumors) can be common in ferrets:
- Insulinoma: Most common neoplasm; leads to hypoglycemia.
- Adrenal cortical tumors: Associated with hypersecretion of hormones, leading to notable clinical signs.
- Lymphoma: Can occur at any age; treated with chemotherapy or radiation.

Euthanasia is typically performed via an overdose of barbiturate injected intravenously.
- Carbon dioxide chamber may be used with prior sedation.

Scientific name: Mustela putorius furo.
Used in neuroendocrinology and toxicology research, influenza research.
Highly susceptible to heat stroke.
Knowledge of injection techniques and blood collection methods essential for care.
Routine vaccinations against common infectious diseases critical for health.