Dietary Echinacea purpurea Attenuates Oxidative Stress and Alters Cytokine Gene Expression Among Heat‐Stressed Broiler Chickens at High Altitude
ABSTRACT Objectives The combination of high‐altitude and heat stress promotes oxidative damage and immune dysfunction in broiler chickens. This study investigated the potential of dietary Echinacea purpurea to mitigate these detrimental effects. Methods In a 42‐day trial, 108 one‐day‐old male Ross 308 broilers were ran...