RESUMEN
In this study, 120 bovine and ovine serum samples were collected and tested for brucellosis with Rose Bengal test [RBT], modified Rose Bengal test [mRBT], buffered acidified plate test [BAPT] using conventional Rose Bengal antigen [RBA] and buffered acidified plate antigen [BAPA] and antigens prepared from B. melitensis [the main cause of brucellosis in Egypt] strain 16-M. Indirect ELISA was used for testing the same serum samples using 4 different coating antigens which were S-LPS and OMP antigens prepared from 16-M strain and S-LPS and OMP prepared from S19 strain. There were some differences between the results of conventional Rose Bengal and BAPA antigens prepared from B. melitensis 16-M strain. In the same time, there were no characteristic differences in results of Indirect ELISA