There is an estimated 250,000 animal-powered farmers in the U.S. doing all or part of their farming with animals. I’d recommend http://smallfarmersjournal.com/ for some good reading and information and a visit to Horse Progress Days to view the latest in modern equipment. Almost anything can be done with animals that can be done with tractors, even combining with a motorized forecart. Horse Progress Days has some interesting support equipment, including well made coal stoves and manual transplanters. If it’s in reach of you, I suggest attending for an eye-opening experience. The food is good, too. - James L.