In this episode of The Poultry Podcast Show, Dr. Greg Fraley, from Purdue University, unpacks how light influences bird behavior, vision, and welfare. He discusses species-specific visual processing, the effects of LED technology, and behavioral indicators of lighting preferences in poultry. Learn how lighting choices can impact both birds and workers. Listen now on all major platforms!

“Oil droplets within bird photoreceptors filter incoming light before it reaches the sensory cells, shaping how birds see their surroundings.”

Meet the guest: Dr. Greg Fraley earned his B.S. and M.S. in Animal Sciences and Avian Physiology from the University of Maryland and a Ph.D. in Neuroscience from Washington State University. He currently serves as the Terry and Sandra Tucker Endowed Chair of Poultry Science at Purdue University. His research focuses on neurobiology, lighting environments, and welfare in poultry production systems.

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What you will learn:

• (00:00) Highlight
• (01:17) Introduction
• (05:26) Bird visual perception
• (07:17) Photoreceptor anatomy
• (09:35) Lighting environment effects
• (14:44) Light preference behavior
• (18:16) Visual contrast challenges
• (21:30) Final Questions

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