I'm trying to figure out how it might be possible in Australia to raise pigs with a minimum of off-farm feed inputs. That is, I want to utilise fodder yielding trees and crops as much as possible, and cut down/eliminate the need to buy in grain. I’ve read Tree Crops by Russell Smith, so I’ve been inspired to look into this approach – but many of the plants he suggests like Honey Locust and Mesquite are considered invasive weeds in Australia, so I assume I can’t plant them. He also suggests Mulberries, Persimmons, and nuts like acorns, pecans and walnuts. Does anyone have any thoughts on these as fodder trees – and whether a combination of such plants might be able to form a large percentage of the pigs’ nutritional needs? Does anyone have any other suggestions? I know the answer depends largely on what part of Australia I am situated in, but if we could talk broadly about what can be grown generally in the temperate/NSW tableland to the subtropical coastal regions that would be great. I found this thread in the archives which talks more generally about livestock (not specifically pig) fodder in central QLD – maybe some of these ideas could be applied to pigs in the regions I mentioned? http://forums.permaculture.org.au/archive/index.php/t-6592.html?