Mini pig diet requirements?

Hey guys apologies if I haven’t gotten back to you recently or it takes me a while to reply. Currently on month 7 of no home internet. Perks of rural living huh? Anyways...

Some friends of mine are getting mini pigs this summer. They plan to breed them. I can get a pig or two each summer beginning next spring. However I’m not familiar with the needs of mini pigs and it’s hard to find feed ratios for them online. I’m hoping that some of my permie homies can help me out.

My plan is to paddock it in a largish area to avoid damaging the land. I will of course have a huge surplus of eggs to feed them. I also should have a nice sun choke and potatoe crop by then. I guess what I’m wondering is how much of their diet maximum can be from each single source and still have healthy pigs? The current feed I’m looking at is eggs, sunchokes, potatoes, and anything else I can grow instead of buy. Any advice helps!

Do you mean kune kune pigs?

Our minis get obese freaky fast on 16% grain mix.  We encourage them to eat hay and forage and they generally maintain a good weight.  
Our pigs love to eat humus and rotten wood, limbs, buds, and bark, rich loamy earth, roots, and other mineral-heavy, very fibrous stuffs.