Ours are like fussy children - anything sweet, no greens. Overripe plums, apples, pears, peaches, melons, squash, bananas hugely popular. All beans and cabbage type things shunned. Oddly, one of the biggest treats they love is freshly picked bindweed, which I throw into the plot as I am weeding, yards and yards of the stuff as we are over run with it. They squabble over it as if it was the best thing ever, and each new batch of pigs has exactly the same reaction. Most surprising.