Silva, C.B.C. Chagas, W.F. Santos, R.F. Gomes, L.R. Ganda, M.R. Seroprevalence of Samonella and Mycoplasma in commercial broilers, backyard chickens, and spent hens in the region of Triangulo Mineiro, state of Minas Gerais, Brazil Subjects--Topical Terms: GALINHAFRANGOBACTERIAINFECÇÃOMINAS GERAIS