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The HotHog Days of Summer: New App Predicts Heat Stress in Pigs

The hot summer months are upon us, and a team at USDA’s Agricultural Research Service (ARS) and university scientists recently announced a new smartphone application, HotHog, to help predict heat stress in pigs.

Utilizing local weather data, the app predicts relative comfort or heat stress levels of pigs on an hourly, daily or weekly basis, says the release. Swine producers may then use this information to determine the pigs’ needs, including the adjustment of ventilation rates, utilizing sprinklers and ensuring free access to abundant, cool water. 

Heat stress in pigs costs the U.S. swine industry an estimated $481 million in revenue losses each year, notes the release, while Jay S. Johnson, animal scientist who leads the ARS’s Livestock Behavior Research Unit in West Lafayette, Ind., says ensuring positive welfare and productivity in pigs will be even more critical in the face of global climate change.

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Trending Video

Stress as a Nutrient Thief - Dr. Sarah Pearce

Video: Stress as a Nutrient Thief - Dr. Sarah Pearce


In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Sarah Pearce, Research Animal Physiologist with USDA ARS, explains why stress can act as a nutrient thief in pigs. She discusses gastrointestinal health, barrier integrity, inflammation, feed efficiency, stress interactions, and emerging biomarkers that may help predict performance challenges before they occur. Listen now on all major platforms!

Click here to read the full research article: https://academic.oup.com/af/article/1...

"Stress can steal calories and nutrients because energy normally used for growth is redirected toward immune activation, gut repair, and other costly survival responses."

Meet the guest: Dr. Sarah Pearce / sarah-pearce-phd-3a5881a5 earned her M.S. and Ph.D. in Nutritional Sciences from Iowa State University and currently serves as a Research Animal Physiologist with the USDA Agricultural Research Service. Her research focuses on gastrointestinal physiology, nutrition, stress biology, immune function, and productivity in pigs and poultry. Learn more from Dr. Sarah Pearce on the Swine Nutrition Black Belt Podcast, available on all major platforms.