New guinea pig

Gustavo

New Born Pup
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I recently got a new guinea pig for my other one ive had since around January, they are both males and the newer one is much younger. My first piggy keeps trying to mount the other one and is purring and moving around the cage really slow. I know this is a dominance thing but is there any way to stop it or make it happen less. I don’t want the little one to be scared or anything, and i put them in the cage together since they arnt fighting just kind of chasing. I take the little one out and put him in the old cage or just sit him on my lap for atleast an hour and then put him back.
 
It’s normal behaviour, you can’t stop it. They will do these behaviours their entire lives. He won’t be scared

How long have they been together?
Did you do their bonding correctly in a neutral area?
The period of establishing their relationship lasts for about two weeks after they have been bonded during this time you will see a lot of this behaviour but it will calm down.

Please don’t keep separating them if you have already bonded them, they need to remain together at all times. They will be stressed by being put in separate cages If you have already bonded them and by separating them you will be causing the extra dominance behaviour when they get put back together as they need to re establish themselves
 
It’s normal behaviour, you can’t stop it. He won’t be scared

How long have they been together?
Did you do their bonding correctly in a neutral area?

Please don’t keep separating them if you have already bonded them, they need to remain together at all times. They will be stressed by being put in separate cages If you have already bonded them and by separating them you will be causing the extra dominance behaviour when they get put back together as they need to re establish themselves
 
I’m not really sure if they’re bonded or not, i’ve never bonded a guinea pig before but the little one seems to really like my other piggy and follows him around the cage. Thank you for the help though!
 
When you introduce piggies you need to put them into a neutral area to carry out the introduction and leave them there for several hours until it is determined that they do like each other. If you just put a new piggy into the existing piggies cage then it can be seen as a territory invasion.

How long ago did you put them in the same cage together?

How old are they? Do be aware that bonding two teens can be produce a lot more dominance behaviour as they are both full of hormones.
Do they have a big enough cage - two boars need a 6ft x 2ft cage otherwise lack of space can lead to fall outs
Did you check the sex of both piggies yourself? If not, please confirm that both of them are Male

A Comprehensive Guide to Guinea Pig Boars
Bonding and Interaction: Illustrated social behaviours and bonding dynamics
Dominance Behaviours In Guinea Pigs
 
When i first introduced them, i let them be for a couple hours and just watched to see how they acted. Both of them didn’t seem to dislike eachother and my older guinea pig mounted him a couple times but thats all. After I let them be for a little i put them in two different cages and placed them next to eachother. Both of them kept looking for eachother so after another hour or so I placed them in the cage together. They seemed fine there wasn’t any fighting or any problems, a couple hours later the older one started to like make a rumble noise and try to chase him around the cage. The cage I have is a 42”x 18”.
 
Once you put two Male piggies together, you must not separate them again. If you separate them you interrupt everything and force them to have to start again. You only separate Male piggies if they fight. If they are getting on, then please not separate them again as you will cause them to reestablish each time and it is stressful for them
It doesn’t sound like you went about the introducing the right way but if they get on then it’s fine now.

The cage is far far too small and does not meet the minimum welfare standards. You need to get a much bigger cage 180cm x 60 cm (70 inches by 24 inches) is the size two boys need. If they don’t have enough space, particularly as teenagers then they will likely have problems.

It also sounds as if you got the new piggy on spec so you don’t know if they are going to be compatible for the long term. You must always keep a plan b in mind to separate them if there are problems down the line. Piggies need to be character compatible to have a long term successful bond.
 
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