The groups’ sow buy-out plan targets a reduction of 500,000 sows, using government funds at $400/sow for a total of $200 million. Producers would provide cash receipts verifying that those sows had been sold for slaughter, sign a document testifying to their sow herd count, and promise not to bring more sows into the herd for at least three years.
http://nationalhogfarmer.com/marketing/news/0820-pork-industry-sow-buy-out/