Hi we keep a couple of pigs for the freezer every year, oh thinks yours look like they could have a bit of gloucestershire(sp) old spot in them, with the boars dont let them go past 6 months or you will get boar taint in the meat.
We feed ours pig grower and as much fresh veg from the veg plot as we can, they love marrows, as Spana said they are very friendly and I honestly did'nt think I would be able to eat them the first time round, but when they came back all jointed and packaged I did'nt look at them as being the little pigs I had fed and cared for.
Dont name them my daughter named the first two, porker and rasher and then would'nt eat them.