It turned out that we needed to lower the board. It was about a foot off the ground. It should be about eight inches. It needs to be so low that there is no way that a momma could get back there. That includes a momma on her side scootching ...
The bumper board is against the back wall only? I've seen designs with the bumper board going all the way around the inside wall, so there's a little piglet hallway all the way around. It gives the sow something to lean against so that there's no way a piglet can get trapped between mama pig and wall. Minor stuff, really.
The walls are too weak. The walls should have been made on top of the floor so that the weight is pushing on the wood rather than hanging from nails. use a top and a bottom plate.
Diversified Food forest maker . Fill every niche and you'll have less weeds (the weeds are the crop too). Fruit, greens, wild harvest, and nuts as staple. Food processing and preservation are key to self self-sufficiency. Never eat a plant without posetive identification and/or consulting an expert.
It seems like a good interim solution and that kid is amazing! But - squishing piglets is a sign of poor motherhood (after the first farrowing where they may just not know better) and I'd cull any sows that squish their babies in a permaculture farm. The goal is less work and that means we need to focus on animals that have their basic instincts still intact so they don't need so much human intervention.
The Greenhouse of the Future ebook by Francis Gendron