How to make a litter of kittens accept a new cat into their group?

It can take several months of hissing and spitting before all the cats tolerate each other or even like each other. You should give them access to each other 24/7 but the kittens need a safe place to hide if necessary. Just love them all the same and eventually they will at least learn to live peacefully in the same household. Time is the cure.

If your older cats have been together for several years, they probably have their "territories" picked out. It is quite possible that they just don't like each other. Having more than one pet is often like being placed with a roommate that you didn't choose - sometimes it is a great fit and sometimes you can't wait to move out! It is hard for me to tell you if getting new kittens will help or hurt the current situation, as it would just depend on how happy your current cats would be with new, and very young roommates. Kittens like to play, a lot, and often need to be taught the rules of the house. There will likely be a lot of fighting at the start until the kittens grow up a little. There is a possibility that kittens will help the other cats mellow out together, but my gut feeling is that this may not happen. If you do decide to get new kittens, remember that you will need a drastic increase in litter boxes (and feeding stations and water bowls). Veterinary behaviorists recommend 1 more litter box than you have cats, so that means 6 boxes! And they all need to be in different areas of the house to give a sense of privacy. You will also need additional quiet space so that everybody can feel safe in their own area.

When you have that many cats, you are bound to have conflict at some point. They may single him out due to his age or size. Separate him for a week or two, then gradually reintroduce him. First, allow the others to hear and smell him but not see him. Progress to sight but without physical contact. Before a physical introduction, place him in a closed carrier in the room with the other cats. Once they have accepted him, you can try a supervised physical introduction. Provide an adequate number of litter boxes (typically one per cat plus an extra). An adequate number of bowls, beds and toys should also be provided to prevent resource protection. A pheromone product, such as Feliway spray or plug in diffusers, may decrease any anxiety in the home.

Good question! You do the introductions slowly, yes. The ideal way is to put the kitten in one room and the other cats in the rest of the house. Once the kitten is cleared by the vet, you will want to put the kitten in the rest of the house and all the other cats in his room. Do this for 30-60 minutes a couple times a day. That way they can get each other's scents. Also, at this stage you will want to feed the cats by the door of the kittens room; feed the kitten on the other side of the door too. So they can smell the kitten and get a reward at the same time. Once that is going well you can use a baby gate to separate them at the door for feeding. After a few days if that is going well (no hissing etc) you can let them all out together. When I say feed them at the door I mean something really good that they will consider a treat like canned cat food, canned chicken or canned tuna. Make it a really pleasurable experience! I also strongly recommend you get some Feliway diffusers. It is "happy cat pheromones" that really works to calm cats down. Use it for at least 2 or 3 months time. Hope this helps. I know it's a long process but it is much better to do it slowly than to cause issues by just throwing him in!

You can try acclimating him to one dog or cat at a time. Do this on "neutral" ground and begin with very short periods of time. Once he is fine with sight and smell, physically introduce them under strict supervision. Choose a new pet when he accepts one and begin the gradual process again. Praise and reward him as he progresses. be patient and be consistent.

The next step is to rotate rooms daily for at least 2-3 days. This allows the new cat explore the rest of the house while the resident cat spends some time in the new cat's room. This will give your resident cats a chance to smell the new cat and rub their own scent on objects. The cats should be fed in each area with wet food twice daily, and it is also good to play with the cats in each area at least twice daily. The practice of setting up a schedule of feeding treats of wet food, as well as a playtime routine, minimizes anxiety and makes the cats feel more secure. Keep the cats in separate areas for as long as it takes to allow them the chance to become desensitized to the smells and sounds of the cats in the other area. When they all seem particularly relaxed with this process, begin to expose them to the sight of each other. A good way to accomplish this visual introduction is to bring the new cat(s) in a carrier to meet your cats and sniff each other through the carrier wire door. Place the carrier on the floor and allow them to meet this way several times a day for about an hour. Continue these meetings for several days or until they remain calm in each other's presence. If and when the cats are able to stay calm in each other's presence during these meetings, it is time to let the new cat out into the rest of the house for a few minutes. The length of the visits can be increased gradually each day. Depending on the personalities of the cats involved, this process may take a few days or a few months. If it appears that any fighting maybe be close to occurring while you are supervising, put the newcomer back in his/her room and proceed more slowly. If those supervised play times go well, you can begin to allow them to cohabitate in your home. If any aggressive behavior occurs at any time, begin the introduction process again. It is very important to understand that this process can take as little as a few days, to sometimes much longer. It is all dependent on the cats involved. If things don’t go well right away... One of the most important steps to dealing aggressive behavior between cats is to recognize the different types of aggression and understand their underlying causes. A short list and description of some commonly seen aggressive behaviors include: chasing; ambushing; hissing; swatting; and/or biting. If you see these behaviors, seek help from your veterinarian. Most cats get along fine if the introductory process is done correctly. Please seek help from your veterinarian if you feel that things are not progressing well, or if you have other questions.

This is very normal behavior. Make sure you provide plenty of litter boxes and food and water bowls to decrease the stress and competition of the kittens. Also, you can put some feliway diffusers in their room to help calm them. Feliway is a cat pheromone to help calm them but it doesn’t work on everyone. Give them some time and hopefully they will start to warm up to each other. I hope this helps!