U.S. hog production has transformed. There were half as many hog farms in the country in 2017 as there were in 1997, and the largest farms are raising 93% of the pigs.
Pork Powerhouses 1996: Expansion Despite $4 Corn
Hogs: Pastured or Forested Production – ATTRA – Sustainable Agriculture
Fewer hog farms, but far more hogs per farm
Letting pigs roam, wallow profitable The Arkansas Democrat-Gazette - Arkansas' Best News Source
Bulletin #1073, Understanding Pork Yields - Cooperative Extension Publications - University of Maine Cooperative Extension
Fewer sows suggests producers are exiting hog business
Demand Grows for Hogs That Are Raised Humanely Outdoors - The New York Times
Feral hogs are destroying farmers' livelihoods. Can everyone figure out how to fight them?, State News
Why Is China Treating North Carolina Like the Developing World?
We're Not Eating Enough Bacon, and That's a Problem for the Economy - WSJ
Fewer hog farms, but far more hogs per farm
Scaling up: 4 ways hog farms changed since the 1990s • Arkansas Advocate
Scaling up: 4 ways hog farms changed since the 1990s • Arkansas Advocate
Free Range Pig Farming on the Homestead - Countryside
Demand Grows for Hogs That Are Raised Humanely Outdoors - The New York Times