Bonding pair and sow

[Pigwig123]

Hi, yesterday I lost my amazing boy Teddy at 3 years old . I had three pairs of neutered boys and sows since buying three boys and them fighting, I just couldn't give one up. Now teddy's moved on, I have a single sow called Wilma. I decided the best thing to do was introduce her to my other pair called stitch and willow. Stitch is a really sweet boy and wouldn't hurt a fly, he is just a really large boar and when meeting wilma chasing/humping her which he does but soon stops. I wasn't as sure about putting her with willow since she's quite a feisty girl at times(I diddnt add I got all the girls from the same place) I did the first bit of the introduction in the large outside run where wilma kept her distance at first. Then both stitch and willow came and kind off sniffed her and moved on. During this they made lots of small noises to one and other. Then wilma moved a bit closer and they both teeth chattered at her. Then, we moved them into the hutch *the hutch will be upgraded shortly into c and c when I move them out of my garage, we will and our spare run onto the cage with 3* When we moved them in wilma was sat in a corner, stitch was sat at the bottom of the ramp and he seemed quite afraid. Willow sat about a foot infront of wilma and if she moved they would both teeth chatter and run her upstairs. I've shut wilma at the bottom and the pair at the top and I'm not sure what to do. The other pair, she doesn't really get on with the girl (twiglet) and the boy (buddy) Is very dominant. I diddnt add wilma was imminently checked by a good vet for any illnesses passed on and they said she was fine. Any advice on bonding would be really helpful

 

[Piggies&buns]

How long were they in the neutral territory run? They need to get through most of the early phases of dominance in the neutral territory area before moving them to the thoroughly cleaned out hutch.
Was it a mild chattering or more aggressive?
Is the hutch big enough on the bottom level for three piggies (that is a 6ft hutch) And was it thoroughly cleaned out before putting the three of them in there?

Dominance Behaviours In Guinea Pigs

 

[Pigwig123]

How long were they in the neutral territory run? They need to get through most of the early phases of dominance in the neutral territory area before moving them to the thoroughly cleaned out hutch.
Was it a mild chattering or more aggressive?
Is the hutch big enough on the bottom level for three piggies (that is a 6ft hutch) And was it thoroughly cleaned out before putting the three of them in there?

Dominance Behaviours In Guinea Pigs

They where in the run for around 20 mins together before I moved wilma back out because she was stressed. Mild at first but got aggressive, the hutch was clean. Yes the hutch is large and I'm adding x2 as much space

 

[Piggies&buns]

They need to be in the neutral territory bonding pen for several hours to get through the early stages of acceptance and dominance before being moved into the hutch. If during the hours in the bonding pen things become aggressive or the bond is not working, then they will not be able to form a bond and should not be moved to the hutch together. If things are ok in the bonding pen after several hours and you do move them to their cage, it still takes two weeks of living together for them to sort out the fine details of their relationship and even if things appear ok in the neutral territory pen, it can still fail within those first two weeks if they actually cannot sort things out.
If if is aggressive and the bonding isn’t successful, then giving them more space wont help and Wilma will not be able to live with Willow and Stitch.

Unfortunately, adding a single sow to a bonded pair is not always straightforward

Adding More Guinea Pigs Or Merging Pairs – What Works And What Not?