Effects of in ovo injection of nano-selenium and nano-zinc oxide and high eggshell temperature during late incubation on antioxidant activity, thyroid and glucocorticoid hormones and some blood metabolites in broiler hatchlings. Acta Sci. Anim. Sci. 2020;42(1):e46029. doi:10.4025/actascianimsci.v42i1.46029