---From today's LA Times- farmers are moving towards a preference for mini-livestock. They eat less, are easily grass-fed, are lighter on the land, and are well-suited to small farms. They are not dwarfs; usually minis are closer to the original size of the breed. Turns out a lot of the super-giant livestock were a breeding predilection from the mid-20th century when good stewardship was low on the list of priorities.
The article is worth it just for the cute slideshow!