It is difficult to know what to do for the best (been there myself many a time
)
We've not had much success with AI, especially on gilts or pigs which haven't recently farrowed - I think a boar is the sure-fire way to make sure you end up with a pregnant pig with minimum cost and hassle
But she'd still be on her own til she farrowed and then you'd have a litter of piglets to raise or sell afterwards - might end up in more of a difficult situation than you are now
I can't remember what breed/age pigs you have, but we've found that generally adult pigs will accept young pigs more easily than one which is either the same size or close in size.
The young pig will usually automatically submit to the bigger one and the older one will see a little pig as no threat whatsoever. Plus, as long as there is plenty of space, the little one will be able to move much quicker and for far longer than the big one - so there's not likely to be a confrontation.
If you do decide to introduce a youngster the way I'd do it is; give Nellie a can of sweetheart stout or guinness to chill her out a bit 30 mins prior to the new one going in, do the introduction just before bedtime and if possible get a castrated male, rather than a gilt - no piggy pmt to worry about
Good luck and keep us posted on what you decide
