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Swine inventory drops 4% from a year ago

As of December 1, there were 74.2 million hogs and pigs on U.S. farms, according to the Quarterly Hogs and Pigs report.

A recent report from the USDA’s National Agricultural Statistics Service (NASS) noted that there were 74.2 million hogs and pigs on U.S. farms as of December 1, a decrease of 4% from December 2020 and down 1% from September 1, 2021.

Five key findings in the Quarterly Hogs and Pigs report include:

  1. Of the 74.2 million hogs and pigs, 68 million were market hogs, and 6.18 million were for breeding.
  2. Between September and November 2021, 33.7 million pigs were weaned, down 4% from the same period the previous year.
  3. From September through November 2021, U.S. hog and pig producers weaned an average of 11.19 pigs per litter.
  4. Producers plan to have 2.94 million sows farrow between December 2021 and February 2022 and 3.01 million sows farrow between March and May 2022.
  5. At 23.8 million head, Iowa hog producers had the largest inventory among the states. Minnesota had the second largest at 8.9 million head, while North Carolina came in third with 8 million head.

Roughly 6,300 operators across the U.S. swine industry were surveyed during the first half of December. The data collected by NASS was received by electronic data recording, mail, and telephone.

The Quarterly Hogs and Pigs report and all other NASS reports are available online at

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