Abstract
The aim of this study was to carry out a serological survey of antibodies against Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) in 1500 one day old broiler chickens sera were examined by serum plate agglutination test. Antibodies against MG and MS were detected 3.4% and 6.4%, respectively. The seroprevalence of MG was 5.2% in chickens from imported fertile eggs and 0% in chickens from local fertile eggs, whereas for MS was 9.3% in chickens from imported fertile eggs and 0.8% in chicks from local fertile eggs.