High-welfare Pigs in the Welsh mountains

Today I visited a high-welfare pig farm and met Kyle the farmer.  He is based a bit around the mountain from where we are staying.

Kyle's pigs

 I had a tour and saw it was a really nice farm. The animals had lots of space to run, dig, and find roots, there were trees dropping supposedly tasty acorns for the pigs, they do not get ill often so don't require extensive use of strong antibiotics (this might not seem that special but in the pig scene it is), and they have sex lives (again this is a bit of a rarity amongst pigs these days).

How others get lots of pigs in a
small area. Ironically surrounded by
a huge area of their natural habitat

I was told how an industrious farmer could have craftily crammed hundreds of pigs into an area that size. Sure they're sacrificing some of the comforts the pigs enjoy but they certainly would make a lot more money. But who does this matter to? Well, Kyle seems to want his pigs to be happy with their lives and I also would wish for this if I had my own farm. A handy side effect, says Kyle, is it means the pork tastes better, which helps because it could have been that it made no difference what-so-ever and that would have been a harder sell.

The Mission:

The aim is that we create the one really good peer-reviewed answer that gets a point of view across. I wish to focus on the quality of environment pigs get first:

the document as is done so far:

• (In google drive rather than on Follow This Food slightly more editing options at the moment) A peer-reviewed, communal, viewpoint on what makes better and worse environments to satisfy pigs drive to root and play.   

The document linked above aims to describe what would be better and worse environments for pigs. It should say; what kind of environment is really bad, what is better, what is great, and what fantastical conditions might some future farmers aim for?

Kyle's little piglets seemed to dare each other to get close

As well as that topic lots of other really great ones came up to, like looking at antibiotic use, or the health of pig fats (Fats topic) in different animals, etc, which are also waiting to be done.

(Below: A vision of how online communities can earn authority on topics with peer-reviewed, openly discussed,  answers, rather than groups discussing things in private and presenting their views with a distant but  authoritative voice)

Kyle's farm looks to me like it would score highly on this topic discussed above and I'd like him, and others, to be able to measure their farm against this answer too.