In the present study, a total of 1667 sera samples were collected from breeder, broiler and layer birds to determine sero-prevalence of Mycoplasma gallisepticum (MG), Mycoplasma synoviae (MS), Salmonella pullorum and Salmonella gallinarium (SPG) infections. Serum Plate Agglutination (SPA) test was used to determine the presence of antibodies against commercial MG, MS and SPG antigens. The overall sero-prevalence of MG, MS and SPG in case of broilers was 7.14, 10 and 5.35%, in the layer birds was 44.9, 42.6 and 51.32% and in broiler breeders was 59.6, 50.13 and 44.1% respectively. The study shows that sero-prevalence of MG and MS was higher in breeder as compared to that of layers and broilers. However, for SPG the prevalence was found highest in layers. The sero-prevalence of MG was higher in female birds while of MS and SPG higher in males. The highest prevalence for all pathogens was found in the period from October to December.

To Cite This Article: Shoaib M, Riaz A, Hassan MU, Yousaf A, Rehman SU, Zafar MA, Kamran M, Amir RM and Malik AM, 2020. Sero-prevalence and associated risk factors of Mycoplasma Gallisepticum, Mycoplasma Synoviae and Salmonella Pullorum / Gallinarium in poultry. Pak Vet J, 40(2): 253-256. http://dx.doi.org/10.29261/pakvetj/2019.097