First, any piggies who are not properly bonded and don’t live together should not have Floor time together. To them each meeting is a bonding session which then gets interrupted meaning they never complete their process and have to start all over again Each time you put them together. This is stressful for them. unless they can all be in the same together and properly bonded, then don’t have them out at the same time.
is your cage big enough for five piggies? That is a 7x2 c&c cage or a cage measuring 240cm x 60cm.
do you have the ability to cope with five?
adding a neutered boar to your females will not necessarily mean he is the boss though, usually it’s still the sows who are in charge.
if you do decide to get a neutered boar, then the safest way is via dating at a rescue centre. The sows will still need to accept the boar into the herd so if you get a boar on spec then you won’t know if he will in fact be accepted.
if you were to take on a boar who hasn’t been neutered he will need to live alongside the girls in a very secure cage, he will have to be neutered and have his six week post op before you could attempt any bonding (And as it will be a bonding without prior dating, you will need to keep a plan in mind for him to live separately in case the girls don’t accept him).
Adding More Guinea Pigs Or Merging Pairs – What Works And What Not?
Neutered / De-sexed Boars And Neutering Operations: Myths, Facts and Post-op Care