My Cat Just Ate a Mouse! Should I Be Proud or Worried?

cat and mouse

I received an email from a cat patient’s family. They have recently moved to the suburbs and with the move came a mouse! The mouse problem didn’t last too long since Tigger killed and ate the mouse right in front of the entire family. While their initial reaction was pride at Tigger’s new found prowess as a huntress, they soon realized a rodent repast might not have been a healthy meal choice on Tigger’s part.

Here are my answers to their concerns about a mouse meal for their cat.

1. If the mouse ate poison, could it be dangerous?

Since mice are small compared to your cat, veterinarians believe a cat would need to eat several poisoned mice to develop toxicity from mouse bait, but it is not impossible to do so. If you have mouse bait out in your home, place it out of range of your cat. One type of mouse bait causes internal bleeding and the other elevated blood levels of calcium. If you have mouse bait in the house and your cat is ill, be sure to tell your veterinarian since you may not know your cat has been lunching on poisoned mice. A better alternative would be to trap mice in mechanical traps rather than poison them.

2. Can I peppermint oil my entire apartment to keep mice away and will the peppermint oil be safe for Tigger?

Recently, there has been concern expressed by experts about toxic effects of essential oils in cats. Cats lack the enzymes required to process essential oils and can become ill if exposed to the oils via ingestion, contact or inhalation. In a previous blog post, I suggested using peppermint oil soaked cotton balls as a mouse deterrent, but think I should redact that statement in the light of new information.

3. They sell sonic pest repellents; would she be okay with one?

As far as cat safety, these devices seem to be okay. The jury is out on the efficacy of the devices when it comes to pest control.

4. Obviously, the mouse wasn’t cooked. Could Tigger get sick from the raw mouse?

The short answer is yes, and one of the reasons to try and keep your cat from eating mice. Mice can be infected with roundworms, which can in turn infect your cat. Mice also carry Toxoplasma gondii, the agent of Toxoplasmosis. Toxoplasmosis is a greater risk to human family members than to feline family members, but since the health of the entire family is important, keeping mice out of the home is also important.

If you have a serious mouse problem requiring an exterminator, mention your cat and follow their directions on post-extermination clean up to protect your cat.

What’s New for Fleas and Ticks?

Ticks have been around forever. Even the ancient Roman author, Pliny the Elder (23-79 A.D.) was vexed by these creatures. He is reported to have said, “Ticks: the foulest and nastiest creatures that be.” Ancient Rome must not have had fleas, or Pliny would have included them on his nasty creature list as well. Besides being nasty, fleas and ticks spread disease to you and your pets.

A new kind of collar

Collars to prevent flea and tick infestations have been around a long time, but their effectiveness has been limited. A veterinary school professor of mine said, “The only fleas killed by a flea collar are those squashed when the collar is put around the pet’s neck.” Polymer technology has advanced flea collars from a dusty plastic strap to a timed release medical device, and in the newest version even repels ticks before they attach. For additional information on year-round flea and tick control, check with the Companion Animal Parasite Council.

A new way to remove ticks

One of my most frequent calls is from an owner who finds a tick attached to their dog or cat and wants to know how to get rid of the nasty critter. The internet is rife with misinformation on how to remove ticks – nail polish remover, smoking matches and petroleum jelly. All of these are bad ideas. Either grasp the tick firmly with tweezers or a tick removing device and pull the tick, head included, out of the skin. This is easier said than done in a wiggly dog with a teeny tiny embedded deer tick. Now, there is a way that will make pet owners ecstatic with an easier way! A new a non-toxic product has been designed and produced to loosen the tick’s grip on the skin and allow it to be lifted off your pet with a cotton ball or moistened pad.

A new method to decrease ticks in the environment

Currently under investigation for the control of Lyme disease are bait boxes for mice. This clever study aims to attack Lyme disease where it starts, with the deer ticks that feed on the reservoir host of the Lyme disease bacteria: the white footed mouse. Bait boxes are placed outdoors. Mice enter the box and a mouse sized dose of fipronyl gets rubbed on their back. Fipronyl is an Environmental Protection Agency registered product found in several top spot tick and flea preventative medications for dogs and cats. When applied to mice, it kills ticks, decreasing the number of ticks which can bite you and your family.

Do you still want more information about ticks? The Connecticut Agricultural Experiment Station has an exhaustive tick handbook available online.

Confused about flea and tick preventatives for your dog and cat? Make an appointment with your veterinarian to find the right prescription for your pets. Follow their directions exactly, because reactions to flea and tick products are most commonly due to improper use of these products.