Hassani Farahani, R.; Mehri, M.; Shirmohammad, F.; Ghalyanchilangeroudi, A. Dietary Curcumin, Protexin, and Their Combination Improve Selected Productive, Eggshell, Metabolic, and Endocrine Indicators in Broiler Breeder Hens under Chronic Cyclic Heat Stress. J Poult Sci Avian Dis 2026.