Seroprevalence and isolation of Toxoplasma gondii from free-range chickens from Espírito Santo state, southeastern Brazil - Beltrame, M. A. V; Pena, Hilda Fátima de Jesus; Ton, N. C; Lino, A. J. B; Gennari, Solange Maria; Dubey, Jitender Prakash; Pereira, F. E. L (Veterinary Parasitology, 2012)