Buim, M.R. Mettifogo, E. Timenetsky, J. Kleven, S. Ferreira, A.J.P. Epidemiological survey on Mycoplasma gallisepticum and M.synoviae by multiplex PCR in commercial poultry Subjects--Topical Terms: GALINHAEPIDEMIOLOGIAPATOLOGIASÃO PAULOPARANÁPERNAMBUCO