United States and Canadian inventory of all hogs and pigs for December 2013 was 78.7 million head. This was down slightly from December 2012, and down slightly from December 2011. The breeding inventory, at 6.97 million head, was down 1 percent from a year ago and down 1 percent from 2011. Market hog inventory, at 71.7 million head, was down slightly from last year and down slightly from 2011. The semi-annual pig crop, at 73.1 million head, was down slightly from 2012 but up slightly from 2011. Sows farrowing during this period totaled 7.08 million head, down 1 percent from last year and down 2 percent from 2011.

United States inventory of all hogs and pigs on December 1, 2013 was 65.9 million head. This was down 1 percent from December 1, 2012 and down 2 percent from September 1, 2013. The breeding inventory, at 5.76 million head, was down 1 percent from last year and down 1 percent from the previous quarter. Market hog inventory, at 60.2 million head, was down 1 percent from last year, and down 2 percent from last quarter. The pig crop, at 29.3 million head, was down slightly from 2012 and down slightly from 2011. Sows farrowed during this period totaled 2.88 million head, down slightly from 2012 and down 2 percent from 2011.

Canadian inventory of all hogs and pigs on January 1, 2014 was 12.7 million head. This was up 1 percent from January 1, 2013 and up 1 percent from January 1, 2012. The breeding inventory, at 1.22 million head, was up slightly from last year but down slightly from 2012. Market hog inventory, at 11.5 million head, was up 1 percent from last year and up 1 percent from 2012. The semi-annual pig crop, at 13.6 million head, was down 4 percent from 2013 and down 5 percent from 2012. Sows farrowing during this period totaled 1.27 million head, down 4 percent from last year and down 6 percent from 2012.

Source: "United States and Canadian Hogs" report