Feeding is something where you will find opinions vary. But please remember the amount you offer should also relate to the breed of pig, the size and age of the pig compared to the amount of grass that is available and other wild food such as acorns also to be compared to the weather, how warm their bedding is to how much exercise is available to them.
But as a general rule of thumb:Piglets approximate 1lb of pig pellets per day for every month of their age
In addition to the concentrates you can offer your pig other foodstuffs like, grass, fruit, vegetables and fodder beat.
DO NOT FEED; the leaves from fodder beet as this contains oxalic acid and large quantities should be avoided, as it is a gastric irritant. As are green potatoes which should be avoided. Parsnips should be avoided, as they are associated with skin lesions in and around the mouth. It has been mentioned that parsnips are a cause of poor pregnancy and associated with abortion. Cow parsley should also be avoided as well as onions, leeks and peppers. And we all know that Ragwort is poisonous.