S
Stephy
Any help will be much appreciated.
Do you really need neutered sows? It is quite a big operation; bigger than for a boy! It might be easier if you had your boar neutered.
One place I know that has a policy of neutering sows as well is Rabbit&Guinea Pig Welfare in Rugby, but most rescues don't bother.
Have you considered giving Herbie a young male companion? Males with an age difference seem to work quite well; better than same age boys. As long as you can keep them separate from girls, that is.