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Illustrated Articles

Small Mammals

  • The ear mite is a surface mite that lives on cats, dogs, rabbits, and ferrets. It is usually found in the ear canal but it can also live on the skin surface. Mites are barely visible to the naked eye. Clinical signs of infestation vary in severity and may include ear irritation, leading to scratching at the ears or head shaking, dark waxy or crusty discharge from the ear, areas of hair loss resulting from self-trauma, a crusted rash around or in the ear, and an aural hematoma. Your veterinarian will advise you about which insecticidal products are suitable. Your veterinarian may want to re-examine your pet to ensure that the mites have been eliminated after the initial treatment has been performed.

  • Enalapril is used on and off label and is given by mouth or injection to treat heart failure, high blood pressure, chronic kidney disease, or proteinuria. Common side effects include loss of appetite, vomiting, diarrhea, and tiredness. Do not use in pets that are allergic to it, have an acute kidney injury, or have certain heart conditions.

  • Encephalitozoonsis is a parasitic infection that can affect the kidneys, eyes, and nervous systems of rabbits. Many infected rabbits do not develop clinical signs until they are older or if they become stressed or immunocompromised. Common signs that may develop include heavy white plaques/growths inside one or both eyes, head tilt, eye twitching, and tremors or seizures. Treatments are available, though not all rabbits respond.

  • Enrofloxacin is an antibiotic given by mouth or in the muscle commonly used to treat bacterial infections in cats, dogs, and off label in small mammals, birds, and reptiles. Common side effects include vomiting, diarrhea, and lack of appetite. It should not be used in growing or dehydrated pets, or in cats with kidney disease. Use cautiously in pets with seizures, liver, or kidney disease. If a negative reaction occurs, please call your veterinary office.

  • Erythromycin ophthalmic is an antimicrobial medication used to treat certain types of eye infections. It may be used “off label” or “extra label” to treat other eye conditions. Erythromycin ophthalmic comes in ointment form. Caution when using this medication in pocket pets as fatal diarrhea may occur if ingested orally.

  • Ferrets are carnivores and cannot handle a diet containing more than 4% fiber. A good quality ferret diet should contain 32-40% protein and 10-15% fat. There are several good commercial dry foods for ferrets.

  • The preferred basic diet for guinea pigs is unlimited amounts of Timothy or other low-calcium hay, supplemented with smaller amounts of a commercial, high-fiber, Timothy-hay based guinea pig pellets. The diet should be supplemented with a variety of fresh, well-washed, leafy greens or colored vegetables; especially those high in vitamin C. Guinea pigs cannot manufacture their own vitamin C, therefore it is important that guinea pigs receive a vitamin C tablet or liquid vitamin C directly by mouth every day. Provide fresh clean water in a sipper bottle and check the tube for blockages each day.

  • All pet rodents must be fed a good, high quality rodent chow available at pet stores. Many veterinarians also recommend offering hay and fresh vegetables to rodents to encourage chewing and the wearing down of their continuously growing teeth. Diets containing seeds and nuts are not recommended, as they are high in fat and low in nutrition. You can also feed your rodent fresh, well-cleaned vegetables daily and occasionally give a bit of fruit. Guinea pigs should be fed a commercial high-fiber guinea pig pellet with added vitamin C.

  • Rabbits are herbivores and are considered grazers. Rabbits should have a daily diet of mostly hay, a smaller amount of fresh vegetables, and a limited number of pellets. Hay is the most important part of a rabbit's daily intake. Over-feeding pellets is a common cause of obesity and soft stool. Rabbits must be fed and provided with fresh water daily. Hay should always be available. A pet rabbit's diet should be supplemented with a variety of leafy green vegetables every day. The high sugar content in fruits (and even carrots) may upset the normal GI tract bacteria if given in excess.

  • Ferrets are commonly affected by ear mite infestations. Many ferrets show no symptoms of infestation but you may notice your ferret shaking her head or scratching herself. Treatment for ear mites must be done under the guidance of a veterinarian familiar with ferrets.