funny you should mention that Britesea, i was headed over to east Oklahoma this morning and traffic was blocked on the little two lane highway by a small herd (11 in all) of buffalo running heck bent for leather down the road with people trying to stop and catch them. they got them turned down a dead end dirt road and who knows where they went from there. @elwood you might want to research different breeds of cattle for a healthier meat or check the stats on meat goats. goat meat is much better for you then beef is but the steaks are pretty tiny, lol
well when we lived in Idaho we ate a lot of bison as it is healthier than beef and my wife has heart disease. I have been doing a lot of research and you do need strong fence. I built a fence once that would stop a truck but don't want that expense. It was built out of the pipe they pump oil through. the gate we made weighed over a thousand pounds lol.
the site of them running down the road was surreal. the Choctaw nation over across the way from me keeps a herd of buffalo and their fence would probably stop a bull elephant but i would hate to pay for building it. seriously, check into different breeds of cattle that are healthier for you than your average beefer is. check out dexters. and goat meat really is so much better for you then beef. i have mine either ground, chopped up for stew meat and the back strap. sometimes i miss not having the big roast or steaks but mostly for everyday the 'goat'burger is great and the stew or soup is good too. and meat goats aren't hard to take care of
No experience with Bison whatsoever, but I noticed you are after healthier meat. What about ostrich? They are as thick as mud, but easy to keep and their skins (leather) and feathers can earn you a tidy sum on the side.