fence help needed

Im moving my Berkshire sow and boar to a new pasture that has no power to run a fencer and was wondering how to keep them from escaping and running
around any ideas apprecited

How big a pasture ? Solar fence charger's are an option for a large field. For rotation pens of 1/2 acre or less I bury used metal roofing horizontally one foot deep or so, back it up with low field fencing and your piggys will not get out. A backhoe is handy for burying fence but a small rototiller works as well. Obviously this is not an option for large grazing fields.

yeah I was thinking that but the solar fencers are too expense would putting 2 by 6 or something on the bottom work or would they just go underneath it

They would go rite under it.

even if it was nailed/screwed to the posts

Well mine would , they like to root along the fence line and SOMEHOW.... they root under your fence ... if you dig and bury the 2x6 it will rot. Metal roofing...

ALRIGHT THANKS