Home  Cats Training Introducing Your New Cat to Your Household
	By: Dr. Monique Chrétien

Settling a new cat in your household takes time and patience. Remember, the cat is being introduced to territory already “claimed” by your resident pet, so you need to take both cats’ feelings into account.

In addition, it is your responsibility to protect the health of your resident pets and the newcomer. For instance, many cats that are adopted from shelters have upper respiratory infections (URI’s) either brewing or obvious. It is important for a cat with such an infection to be treated as soon as possible. Make sure to keep your new cat completely isolated from your other cats for at least a week, or until the infection has completely cleared up before attempting introductions.

Tests for Feline Leukemia Virus (FeLV), Feline Immunodeficiency Virus (FIV) and Feline Infectious Peritonitis (FIP) should be performed on your new cat. These diseases can be lethal to cats so it is important to make sure that your new cat is not a carrier. A fecal test should be performed before the cats begin sharing litter boxes - to check for internal parasites.

Check your resident cat’s vaccination status to make sure he is sufficiently well protected against diseases the newcomer may be harboring.

• After a week has passed, allow your resident cat to explore outside the door of the room where the new cat is residing.
• Only when all signs of aggression (hissing, growling) are absent, open the door a crack. Use a doorstop or hook to secure the door. Again, wait for the hissing and growling, if any, to disappear.
• If you have a large carrier or crate, place the new cat in it. Then bring it into your main living area. Try simultaneously feeding both cats treats or delicious food so that they associate each other’s presence with a pleasurable experience.
• Once the cats are comfortable in this situation, allow them interact under your supervision. If there are any signs of aggression, you might have to limit their exposure to, say, 5 to 10 minutes, or perhaps go back to the separation phase.
• Gradually increase the time the cats spend together as long as they are not aggressive to each other. Remember cat play can be pretty rough.

Home Care

You will need additional "infrastructure" to support your cats. Obtain new food and water bowls, an extra litter box (or two), scratching posts/pads, various toys, and bedding for the new cat. Obtain the same type of food that the “new” cat was eating in the previous home. If you choose to switch the cat’s ration, do so gradually over a two-week period to decrease the chances of causing diarrhea.

• Don’t ever let the dog rush toward the cat, even if only in play.
• Provide your cat with a variety of escape routes and high hiding places that are easily accessable at all times. Your cat must be able to get away from the dog whenever necessary.
• Slowly allow the dog and cat spend more time together but always supervise them until you are absolutely sure there is no threat of danger to either of them.

Cat to Bird or Small Mammal Introductions

Cats are natural predators, so keep your small furry friends safe by housing them in an enclosure that cannot be opened by an agile paw. Keep them in a room that is off limits to your feline family member when not supervised.

Follow the same protocol with your feathered friends but be careful where you choose to keep them. Birds have some restrictions on where they can be kept for health reasons (not in direct sun or draft). Check with a veterinarian specializing in exotic pets if you have concerns on where to have your bird’s enclosure.

Whether a bird or small mammal, you should make sure that their enclosures have adequate houses and boxes so they can escape from the cat’s line of vision if they want to. It can be very stressful for any animal not to be able to escape the "evil eye."

At Home Care

Following these guidelines and using your best judgement will help to ensure that your new feline family member and resident pets will come to live together in harmony.

If you have concerns for the health or behavior of your pets, immediately contact your local veterinarian.

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