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March 1 US Hog Inventory Down Slightly from a Year Ago

A USDA hogs and pigs report Thursday showed the March 1 total national inventory, breeding herd, and the number of hogs kept for marketing all below the year-ago level. 

The inventory of all hogs and pigs on American farms at the beginning of the month was pegged at 74.512 million head, down slightly from 74.691 million the previous year. Meanwhile, the March 1 breeding herd, at 5.98 million head, was 1% below a year earlier, while the market hog inventory inched lower to 68.532 million head. 

Going into the report, most traders and analysts were projecting increases for all three categories compared to a year earlier, with the total number of hogs and pigs and the market hog inventory expected to be 1% higher. 

The December 2024-February 2025 pig crop, at 33.7 million head, was down slightly from last year. Sows farrowing during this period totaled 2.89 million head, 1% below the previous year. The average  
pigs saved per litter was 11.65 for the December 2024-February 2025 period, compared to 11.53 last year.  

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In this episode of The Swine it Podcast Show, Dr. Neil DeBuse from Kalmbach Feeds and Dr. Steve Tousignant from Vaxxinova US discuss PRRS management strategies, recombination risks, whole genome sequencing, and the role of autogenous immunization programs in swine systems. They highlight practical approaches to improving immunity, reducing outbreaks, and advancing PRRS control across production systems. Listen now on all major platforms!

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Dr. Steve Tousignant is Director of the Swine Business Unit and Technical Services Veterinarian at Vaxxinova US, with a DVM and PhD from the University of Minnesota. His experience combines epidemiology, technical services, and practical immunization strategies designed to support consistent herd performance and long-term production stability. Don’t miss the chance to be part of the Swine Inner Circle!