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Minor Expansion in US Hog Herd Confirmed

As expected, the USDA’s latest quarterly hogs and pigs report confirmed some minor expansion in the US hog herd. 

Released Thursday, the report pegged the total US inventory of all hogs and pigs as of March at 72.86 million head, up about 0.2% from 72.68 million on the same date last year. Pre-report expectations were for a slightly more aggressive year-over-year increase of 0.3%. 

The March 1 breeding inventory, at 6.13 million head was up roughly 0.5% on the year, compared to trade ideas of 0.6%. The number of market hogs came in at 66.73 million, an increase of about 0.2% from 66.59 million a year ago, but still also slightly below expectations. 

The December 2022-February 2023 pig crop, at 32.1 million head, was up slightly from last year. Sows farrowing during this period totaled 2.91 million head, down slightly from previous year. The average pigs saved per litter was 11.02 for the December 2022-February 2023 period, compared to 10.95 last year.  

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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.