I have been gradually introducing 2 new sows to my other sows, roughly the same age. The 2 dominant I would expect will teeth chatter, but it's not really turned to fights. A bit of sparring but they don't really touch each other. I have plenty of food for all and the 2 non dominant are quite happy and don't really care. How long will the teeth chattering go on? Really not sure if bonding is happening or not...i had them all in the bath last night for a few hours, got them in a large space with hiding places. Got bars separating so they're right beside each other when I'm not there to supevise just incase. Should I just wait it out and hope for the best?
Hi! Guinea pigs don't do gradual introductions. For them it is totally frustrating to have the bonding process interrupted all the time at the first sign of dominance, as the biggest part of bonding is testing whether the piggies involved can work out a hierarchy and therefore a functional group or not.
Once you have committed, you have to sit it out and allow them to work through acceptance into the leadership sort-out, which can take two days, but which cannot be interrupted before the leadership has been establish or an establishment has failed - and that is generally a chunk of several hours in one go each time.
Only if the two top sows can come to an agreement which of them is standing down will the bonding be successful. There is nothing you can do about that - like humans crammed into an office, not all will click and be happy for the other to be boss. Until the leadership has been established or not, the under-sows will sit on the fence and await the outcome. If the leadership question has been solved, then the hierarchy will be established rank by rank from the top down over the next ca. 2 weeks.
In your case, it doesn't promising to me to be honest. It rather looks like the two have made up their mind that they don't want to be with each other. Not every bonding that is not successful has to end in a fight, you know; those are just the most extreme cases. But in my experience once piggies have made up their mind that the other party is 'Not One of Us', you have had it. I have had plenty of bondings that have failed over this issue.
If you force it through, it is bound to resurface again and again down the line as old grudges won't be forgotten.
Please take the time to read our very detailed bonding guide. You should find it helpful.
Bonding: Illustrated Dominance Behaviours And Dynamics