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US swine inventory expected to further decline - USDA ERS

It is generally acknowledged that 2023 was a difficult year for US hog producers, according to the most recent USDA Livestock, Dairy and Poultry Outlook report. Iowa State University calculates that monthly producer losses last year averaged more than $24 per head.

The December 2023 Quarterly Hogs and Pigs showed a year-over-year reduction in the December 1 breeding inventory of more than 3%. Sow slaughter data issued weekly by USDA suggests that reductions in the US breeding inventory are likely continuing. 

For weeks 1–7 of 2024, USDA data show that sow and boar slaughter increased about 5.8% over the same period last year. A continuation of the trend established in the first 7 weeks of 2024 would further downsize the inventory of breeding animals. Fewer breeding animals usually means fewer farrowings, which are typically associated with smaller pig crops, depending on litter rates. In general, smaller pig crops usually result in higher hog prices.

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Causal Impact Of PRRS Dosing - Dr. Edison Magalhaes

Video: Causal Impact Of PRRS Dosing - Dr. Edison Magalhaes


In this episode of The Swine Health Blackbelt Podcast, Dr. Edison Magalhaes from Iowa State University presents findings from a large-scale retrospective cohort study evaluating the causal impact of full-dose PRRS immunization on nursery mortality. Using production data and advanced analytical methods, he explains how confounding factors changed the interpretation of results and highlights practical lessons for veterinarians and producers making data-driven decisions. Listen now on all major platforms!

Click here to read the full research article: https://pmc.ncbi.nlm.nih.gov/articles...

"Raw production data can mislead immunization decisions when confounding factors hide the real value of full-dose PRRS protocols."

Meet the guest: Dr. Edison Magalhaes / edison-magalhaes-9b37b812a is an Assistant Professor in the Department of Animal Science at Iowa State University and holds degrees in Veterinary Medicine, Business Administration, and advanced training through MSc and PhD programs. His research applies data science and epidemiological methods to large scale swine production systems, helping transform production records into practical decisions for health and performance. Listen to The Swine Health Blackbelt Podcast featuring Dr. Edison Magalhaes on all major platforms.