Need Help Introducing New Baby Females to Older Females

The Rat Shack Forum

Help Support The Rat Shack Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

elguapo

New Member
Joined
Jul 27, 2011
Messages
1
Location
USA
I'm looking for advice on introducing three older females to two newly adopted female babies. Here's the story: We adopted two one-year old female rats from a family that was giving them up. These were our first rats, and think they make great pets. We think one of the females had an undetected medical condition because she died suddenly about six months after we adopted her. (We had taken them to the vet twice before this just for checkups.) We didn't want the older female, Cookie, to be alone, so we adopted two baby rats, Chippie and Sugar. Cookie took to Sugar and Chippie right away. We didn't know to quarantine new rats or introduce them slowly back then, but we never had and issue and it was a beautiful friendship from day one.

About a year later, we decided we wanted more rats and adopted two more baby girls. All the rats seemed to get along great when we introduced them and played together well. I told my GF not to put the older females in the same cage as the babies. However, the rats seemed to be getting along and the first adoption went so smooth that my GF put the older females in the cage with the babies before she want to bed. I had already gone to bed and was unaware of what she did or I would have put them back in separate cages.

The next morning, the two babies were dead. I believe they were killed because the skin on the back of their neck had been torn way. I was very upset with my GF. I'm a very light sleeper, but I never heard the rats fighting, and we don't know which female killed them. The rats are in the next bedroom and both doors were closed, so it is possible I just didn't hear the horror. Sugar, had a cut on her back, so I though it might have been her, but now I think she got the wound defending the babies from Chippie (why I think this below.)

Well, we still wanted some more rats, so about two weeks later, we adopted two 6-week old females. This time, my GF did not mix them together, and we have them in cages beside each other. We hold the babies and let the older rats sniff them. Cookie and Sugar seem fine with the babies and alternate between sniffing them, cleaning them, and ignoring them.

However, one of the older females, Chippie, seems very aggressive toward them. When we hold the babies and let her sniff them, she tries to claw them really hard and wants to bite them. She grabbed the neck skin on one of the babies really hard and yanked it like she was trying tear the skin, but she didn't cause a wound, and the baby didn't cry either. Cookie did all this very calmly and did not hiss or arch her back, but I am now convinced that Chippie killed the two other babies.

About three weeks after we got the two new baby rats, we gave them all a bath with scented tear-free baby soap and dabbed them with vanilla, and held the babies while letting the older girls sniff them. Again, Sugar and Cookie did fine, but Chippie seemed to want to bite them or claw them. Again, Chippie showed no other signs of agitation.

So her are my questions: 1). Is Chippie really trying to hurt the baby rats since since is not showing any other signs of aggression like hissing or arching her back? 2). If we let them all roam around together in a room supervised, would we have enough time to save the babies, who are now about 9-weeks old, if Chippie did try kill them? 3). What can we do to help Chippie get used to her new sisters? 4). Would it be a good idea to let Cookie and Sugar play with the babies with out Chippie until the babies are older and can defend themselves?

Both sets of rats are in good sized cages, we we can keep the separate indefinitely if we have to, but we'd prefer to have just one happy rat family. Yes, we have made some mistakes, and I'm still a little upset with my GF, but we really like pet rats, are trying to be responsible rat owners, and want to provide them with the best home we can.
 
First how old are the new babies? I personally wait on intros with my females for a lot longer than I do my males. Females grow slower than males.

If you think they are possibly mean. I would make sure the girls are at least 3-4 months before trying a move in at all. Generally you do not want to do intros till the babies are around 8 to 10 weeks but that will depend on your other rats. If you know they are good rats then you can do 8, since you have a little bugger you should wait longer. You can prepare for the intros now but do not do them any earlier. You can switch cages if possible. Let the babies play in the older rats cage. I let them go have a pee fest in their cage. if you cant switch cages you can switch blankets, food bowls, or hammocks or all 3. That will help them become familiar with the new rats smell.

You have to convince the rats to like the other rats. I would do intros on a table top. I prefer this method to a tub because I feel i can watch them better and it is not as stressful as a tub. Switch cage odors out during intros so they are stuck with their smell constantly. Do that like I said above. If those other babies were younger they are easier to kill it only take one bite to do it. I have boys and girls who pull what you want to watch out for is a high speed pursuit of the older rats after the babies. A rat ball, which you should never reach in to break it up, toss a towel at them or clap your hands.

I personally never do the cages near each other it is pointless to me. rats will protect their cage, they will huff, stomp their feet, and bite any part of a intruder rat that comes with in reach (lost a few toes here that way). It isnt getting use to seeing the rat. It is getting used to the smell being in their area.
 
I'm so sorry you experienced such horror with the first babies.
Babies don't smell like rats and some rats if not introduced properly will get rid of intruders in their cage. Chippie was simply doing what was natural to her, protecting her colony.
The first thing I want to say is do not hold the babies to the others through the bars. That simply rises their anxiety and stress levels especially for Chippie.
It is a good idea to allow the babies to play with the ohter two until the babies are at least 3 months old. Then, I would start slow intros on neutral ground with Chippie and the gang.
 
Back
Top