Introducing your pets is very important - see a few tips that can help you make friendly introductions. http://www.petco.com
The key to successfully introducing your new cat to your other pets is to take your time. You can never really go too slow during introductions. The first thing you need to do is set up a quiet room exclusively for your new cat. After you feel your new cat is comfortable, you can begin scent exchange with your pets. So start the process by placing some of your resident pets bedding and toys in with your new cant and vice-versa. Take a soft washcloth and gently rub it on your new cats cheeks, where it?s scent glands are. Then put it under your existing pets food bowl. You can then do the opposite and provide your new cat with a washcloth from your resident pet. For dogs, you will want to gather their scent by rubbing their paw pads instead of their cheeks. Once your new cat is comfortable with it?s surroundings, you can allow your resident pets to sniff at the closed door leading to his quiet room. Keep the door closed, but reward each animals quiet, calm curiosity with treats and attention. If any of your pets seem obsessed or overly aggressive when they approach the door, they are not ready to take the next step. You?ll need to give them more time to get use to each other?s scent. After a few days, if your pets are remaining calm through the closed door, you are ready to attempt their first face to face introduction. Start by bringing your pets over to the door that separates them and reward their curiosity with attention, toys, or treats. Now if you have a resident dog, it is critical that you put him on a leash so you have control. Once each pet is at the door, open it a crack. Not too far, just enough so they can smell and see each other. And be prepared to close the door quickly if either pet becomes outwardly aggressive. With cats a certain amount of hissing, growling, and posturing is to be expected. If either animal does become outwardly aggressive, don?t punish or yell at them, this will only make matters worse. You simply need to go back to the closed door step and remind yourself that this process takes time. So be patient and let your pets sniff and hear each other through the door a little longer. Once you are able to crack the door and your pets remain calm, they are ready to meet. Before introducing them, place a table or some high furniture in your cats quiet room so it has a place to escape to if frightened. If you are introducing your dog be sure to have him on a leash. Also, get treats ready to reward for good behavior. Don?t force any interaction, just supervise. Let each pet approach the other on it?s own. After a minute or two, reward both pets with treats and attention, so the visit ends on a positive note. Repeat these supervised visits a couple of times a day for several days, ending each visit on a good note. Now keep in mind this process can take a while, so be patient. If you are introducing cats, you can probably begin to let them interact on their own after a few weeks. If you are introducing your dog to the new cat, you shouldn?t allow them to interact unsupervised until their behavior is completely appropriate, which can take several months.