U.S. inventory of all hogs and pigs on March 1, 2010 was 64.0 million head. This was down 3 percent from March 1, 2009 and down 2 percent from December 1, 2009. 

Breeding inventory, at 5.76 million head, was down 4 percent from last year and down 2 percent from the previous quarter. Market hog inventory, at 58.2 million head, was down 3 percent from last year and down 2 percent from last quarter.

The December 2009-February 2010 pig crop, at 27.9 million head, was down 2 percent from 2009 and down 2 percent from 2008. Sows farrowing during this period totaled 2.90 million head, down 4 percent from 2009 and down 6 percent from 2008. The sows farrowed during this quarter represented 50 percent of the breeding herd. 

The average pigs saved per litter was a record high 9.61 for the December 2009-February 2010 period, compared to 9.48 last year. Pigs saved per litter by size of operation ranged from 7.40 for operations with 1-99 hogs and pigs to 9.70 for operations with more than 5,000 hogs and pigs.

U.S. hog producers intend to have 2.90 million sows farrow during the March-May 2010 quarter, down 4 percent from the actual farrowings during the same period in 2009 and down 5 percent from 2008.  Intended farrowings for June-August 2010, at 2.89 million sows, are down 2 percent from 2009 and down 6 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, down from 45 percent last year.

Revisions                                   
                                                                               
All inventory and pig crop estimates for March 2009 through December 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 June-August 2009 pig crop and September 2009 total inventory.  An adjustment of less than one percent was made to the December 2009 total
inventory.

Hogs and Pigs:  Inventory March 1, 2010
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                                             2009      2010      2010 as % of 2009
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                              ----------- (Million Head) -----------       
March 1 Inventory      
  All Hogs and Pigs        65.8         64.0                   97      
  Kept for Breeding          6.0          5.8                     96      
  Market Hogs                59.8         58.2                    97      
                       
Market Hogs and Pigs 
  by Weight Groups    
    Under 50 Pounds        19.8        19.0               96      
    50-119 Pounds            16.4        16.0               97      
    120-179 Pounds          12.7        12.5               98      
    180 Pounds and Over 10.9        10.7               99      
                        :
________________________________________________
Farrowings and Farrowing Intentions
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                                       2008     2009    2010         2010 as % of 2008      2010 as % of 2009
--------------------------------------------------------------------------------
                                    ------------ (Million Head)------------    
               
Dec-Feb                         3.07    3.01     2.90                          94                                      96
Mar-May *                       3.05    3.02    2.90                           95                                      96    
Jun-Aug *                       3.08    3.00    2.89                           94                                      98     
 
    
*Farrowing intentions.

See the complete USDA March, 2010 Hogs and Pigs Report

Source: USDA-NASS