Effects of heat stress on the formation of splenic germinal centres and immunoglobulins in broilers infected by Clostridium perfringens type A - Calefi, Atilio Sersun; Siqueira, Adriana de; Namazu, Lilian Bernadete; Costola-de-Souza, Carolina; Honda, Bruno Takashi Bueno; Ferreira, Antonio José Piantino; Quinteiro Filho, Wanderley Moreno; Fonseca, Juliana Garcia da Silva; Palermo-Neto, João (Veterinary Immunology and Immunopathology, 2016)