we have chosen to keep kune kune pigs- which are able to fatten on grass/forage without the need for grain inputs.
currently we have 4 pigs, but we
should be having piglets in the fall.
currently we are letting the pigs graze in the old garden area. they are keeping the 'weeds' and keeping things nicely 'mowed' , we like these pigs as they eat grasses and such, but leave the larger bushes/plants alone (unlike sheep!)
these also have a much smaller snout so they do not root much.
i am not sure how to post a video from
facebook, but we put up a video of our pigs grazing a few weeks ago:
https://www.facebook.com/Cloud-9-Farms-785187241536162/
the only 'downside' is that it takes 12-16 months for a kunes to be ready for harvest - and even then, they will only be ~150lbs. personally we dont mind as we have VERY LITTLE feed costs into them, even after a year.
we do feed them a bit of grain in the winter - and we just use our 18% layer feed when we do that. they get so little of it, we dont even have to factor them in when we order grain (for out
chickens and turkeys)