General Discussion
In reply to the discussion: Yes, I hate Paula Deen...here's why... [View all]antigone382
(3,682 posts)On a properly managed farm, as in any natural system, manure is a key resource as a part of a larger cycle. If the animals are rotated effectively (as they should be), the manure is just fertilizer for the soil. Yes, it would require more pasture to do that; but bear in mind this is displacing the requirement for land currently devoted to intensive production of grains--and bear in mind that such crop production methods result in much more severe nitrogen runoff, due to fertilizer inputs on bare soil, than would be the result of pigs on fully vegetated pasture land.
Edited to add: I grew up on a farm. Livestock manure is like gold in terms of improving soil fertility and structure. It only becomes an ecological problem when it is concentrated in massive amounts and not distributed over a significant area and worked into the soil.