problems with hog factories actually start at the
loading dock. Because corn and other hog feeds are
not farmed extensively in North Carolina, to feed
the state's 10 million hogs, factory farms must bring
in train car after train car of grain from the Midwest.
This grain is loaded with nitrogen and phosphorous,
which the hogs eat, digest, and excrete. Only a small
percentage of the grain is converted into meat. The
remainder is turned into hog waste and disposed of
in North Carolina's environment.
This means much of the nitrogen and phosphorus stored
in hog feed ends up in hog excrement and ends up in
North Carolina's soil, air, and water.
Why they're called "Pigs"