United States inventory of all hogs and pigs on June 1, 2011 was 65.0 million head. This was up 1 percent from June 1, 2010, and up 2 percent from March 1, 2011.
Breeding inventory, at 5.80 million head, was up slightly from last year, and up slightly from the previous quarter.
Market hog inventory, at 59.2 million head, was up 1 percent from last year, and up 2 percent from last quarter.
The March-May 2011 pig crop, at 28.9 million head, was up slightly from 2010 but down 1 percent from 2009. Sows farrowing during this period totaled 2.88 million head, down 2 percent from 2010 and down 5 percent from 2009. The sows farrowed during this quarter represented 50 percent of the breeding herd. The average pigs saved per litter was a record high 10.03 for the March-May 2011 period, compared to 9.81 last year. Pigs saved per litter by size of operation ranged from 7.50 for operations with 1-99 hogs and pigs to 10.10 for operations with more than 5,000 hogs and pigs.
Full report here: http://www.usda.gov/nass/PUBS/TODAYRPT/hgpg0611.pdf