Effects of early heat conditioning and dietary glutamine on productivity, immune response, and oxidative stress status in broiler chickens under heat stress conditions.

Heat stress (HS) conditions in broiler farms impair antioxidant markers (total antioxidant capacity, catalase, superoxide dismutase, and malondialdehyde) and immune indices (IL1β, IFN-γ, IL10, and C3), which reflected negatively on productivity, resulting in economic losses. Therefore, we used 300 Cobb-500 broiler chicks were used to evaluate the impacts of early heat conditioning (EHC) and dietary glutamine (DG) on their productive and immunological traits. In a completely randomized factorial design (2 × 3), 300 Cobb-500 broiler chicks underwent EHC (40 vs.