Hah, a big pig book, huh? :) You have all you need in the Meatsmith videos ;)

Re: rabbits. When my mother raised rabbits, they routinely had 8-12 does with 2 bucks. When they started downscaling before shutting the whole thing down, they had 1 buck and 5 or 6 does and each year (spring) they got a new buck from a friend, while they gave him one of their new bucks. So that must have maintained enough of a genetic diversity.