U.S. inventory of all hogs and pigs on Dec. 1, 2009 was 65.8 million head.  This was down 2 percent from Dec. 1, 2008 and down 2 percent from Sept. 1, 2009. 
                                                                               
Breeding inventory, at 5.85 million head, was down 3 percent from last year and down slightly from the previous quarter.  Market hog inventory, at 59.8 million head, was down 2 percent from last year and down 2 percent from last quarter.
                                                                               
The Sept.-Nov. 2009 pig crop, at 28.8 million head, was up slightly from 2008 but down 2 percent from 2007.  Sows farrowing during this period totaled 2.97 million head, down 2 percent from 2008 and down 6 percent from 2007.  Sows farrowed during this quarter represented 51 percent of the breeding herd. 

The average pigs saved per litter was 9.70 for the Sept.-Nov. 2009 period, compared to 9.50 last year.  The litter rate equaled the record for pigs saved per litter set during the June-Aug. 2009 period.  Pigs saved per litter by size of operation ranged from 7.40 for operations with 1-99 hogs and pigs to 9.80 for operations with more than 5,000 hogs and pigs.
                                                                               
U.S. hog producers intend to have 2.95 million sows farrow during the Dec. 2009-Feb. 2010 quarter, down 2 percent from the actual farrowings during the same period in 2009 and down 4 percent from 2008.  Intended farrowings for March-May 2010, at 2.94 million sows, are down 3 percent from 2009 and down 4 percent from 2008.
                                                                               
The total number of hogs under contract owned by operations with over 5,000 head, but raised by contractees, accounted for 44 percent of the total U.S. hog inventory, up from 43 percent last year. 
      
Revisions                                   
                                                                               
All inventory and pig crop estimates for March 2008 through Sept. 2009 were reviewed using slaughter, death loss and current import and export data.  Based on this review, adjustments of less than one half of one percent were made to the December-February 2009 pig crop and Sept. 2009 total inventory.  An adjustment of less than one percent was made to the June 2009 total inventory while an adjustment of less than two percent was made to the March-May 2009 pig crop.
                                                                               
Special Note                                 
                                                                               
The market weight group under 60 pounds has been changed to under 50 pounds.  The market weight group 60-119 pounds has been changed to 50-119 pounds.  The 120-179 pounds and 180 pounds and over weight groups remain the same.  The changes align NASS market hogs and pigs weight groups more closely with international trade data and allow for a more uniform analysis of the North American hog inventory. 
                                                                                                                                                               

Hogs and Pigs:  Inventory Dec. 1, 2009
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                                         2008      2009      2009 as % of 2008
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                                            ----------- (Million Head) -----------       
December1 Inventory      
  All Hogs and Pigs        67.2         65,8                 98      
  Kept for Breeding          6.2            5.9                  97      
  Market Hogs                  61.0         59.8                 98      
                       
Market Hogs and Pigs 
  by Weight Groups    
    Under 50 Pounds        20.3            19,8               98      
    50-119 Pounds            16.4            16.4              100      
    120-179 Pounds          13.2            12.7               97      
    180 Pounds and Over 11.2            10.9               97      
                        :
________________________________________________
Farrowings and Farrowing Intentions
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                                    2008     2009    2010             2009 as % of 2008      2010 as % of 2009
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                                    ------------ (Million Head)------------    
               
Sep-Nov                    3.03    2.97                                                98
Dec-Feb*                  3.07    3.01         2.95                               98                               98    
Mar-May*                   3.05    3.02         2.94                               99                               97     
 
    
*Farrowing intentions.

To see the complete USDA Dec. 2009 Hogs and Pigs Report, go to  http://www.usda.gov/nass/PUBS/TODAYRPT/hgpg1209.txt

Source: USDA