Linking egg size, embryonic development, and post-hatch thermoregulatory responses in broilers from young and old breeders (2026)Silveira, Robson Mateus Freitas ; Castro Junior, Sergio Luís de ; Sousa, Felipe Dilelis de Resende ; Nazareno, Aérica Cirqueira ; Ticiano, Jumara Coelho ; Silva, Iran José Oliveira da