I don't know what breed they were, but a rancher I know in Alberta had two enormous boars in his yard and said they were over 500#'s, which I can tell you is HUGE, but he said that he had another one about the same size which they had castrated and turned loose with the cattle, when they rounded it up and sent it off to the slaughter house it was over 1000#'s, he told me the exact weight, but I just remember it was 1000#'s+, they had to load it into the truck with a frontloader as it was to big to go up the ramp. I had two different bowhunters I was guiding in Australia, make stalks on monster pigs in tall grass that turned out to be BUFFALO, in both cases, I KNEW they were buffalo, but the hunters didn't, I can tell you I had a good laugh when they came back with their eyes showing a lot of white, they didn't think it was funny though!