We have american Guinea and large black sow and an american Guinesa male.  We have bred the guineas before and now he large black surprised us with 7 little beautiful pigs.  I can't even find any data on these two breeding.  But the pigs are healthy and strong tooo cute.  LOL!  From what I read when you cross a long breed like the large black and a lard breed like th eamerican guinea you get huge hams.  If anyone wants a little piggy for breeding let me kneo, maybe we cabn work something out.