Highly Pathogenic Avian Influenza Detected in a Commercial Turkey Flock in Calhoun County

Oct 03, 2025

The Iowa Department of Agriculture and Land Stewardship and the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (H5N1 HPAI) in a commercial turkey flock in Calhoun County, Iowa. This is Iowa’s eighth detection of H5N1 HPAI within domestic birds in 2025.

About H5N1 HPAI in Birds

H5N1 HPAI is a viral disease that affects both wild and domestic bird populations. H5N1 HPAI can travel in wild birds without those birds appearing sick, but is often fatal to domestic bird populations, including chickens and turkeys.

Heightened Biosecurity

The Iowa Department of Agriculture and Land Stewardship is strongly encouraging Iowa poultry producers and backyard flock owners to bolster their biosecurity practices and protocols to protect their flocks. The Department has numerous biosecurity resources to reference on its website.

Source : iowaagriculture.gov

Video: Refeeding Syndrome After Weaning - Dr. Theo van Kempen

In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Theo van Kempen, an independent consultant with extensive swine nutrition and product development experience, explains how refeeding syndrome can affect newly weaned piglets. He discusses phosphate depletion, edema, intestinal health, oxygen delivery, and high-glycemic nursery diets, and presents nutritional strategies designed to reduce postweaning challenges. Listen now on all major platforms!

Click here to read the full research article: https://pubmed.ncbi.nlm.nih.gov/40710...

“Refeeding syndrome develops when feeding resumes after fasting, creating an acute phosphate deficiency as metabolism rapidly accelerates and cellular phosphate requirements increase.”

Meet the guest: Dr. Theo van Kempen / theo-van-kempen-26181b15 holds a Ph.D. in Nutrition from the University of Illinois and has extensive experience in swine nutrition, digestive health, nutrient management, and feed product development. His career includes academic research at North Carolina State University and leadership positions in animal nutrition R&D. He currently works independently in product development, including nutraceutical and nutritional innovation. Listen to Dr. Theo van Kempen on The Swine Nutrition Blackbelt Podcast, available on all major platforms!