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Worsening Bird Flu Outbreak Highlights Factory Farm Threats

A bird flu outbreak has been reported at a second commercial poultry farm in Georgia, which confines more broiler chickens on factory farms than any other state. This follows news of the first U.S. human death from bird flu earlier this month, along with outbreaks on commercial poultry operations in dozens of states, and on cattle operations in 16 states.

Factory farms create the ideal breeding grounds for infectious diseases like bird flu. The vast majority of U.S. broiler chickens (78%) and U.S. egg laying hens (75%) are raised on factory farms, averaging over 175,000 and 850,000 animals per operation, respectively. Dairy cows, beef cattle and swine are raised in similarly cramped conditions.

This tightly-concentrated factory farm system means that outbreaks on a handful of operations can precipitate skyrocketing prices across the country, including in regions without bird flu outbreaks or significant egg shortages. And while consumers see egg prices skyrocket, food corporations like Cal-Maine, the nation’s largest egg producer, rake in record profits.

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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.