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Laboratory Diagnosis Of Mycoplasma Gallisepticum (Mg) Infection In Experimental Layer Chicken Receiving Mg Vaccines And Mg Organisms, Somsak Pakpinyo, Pinyo Pitayachamrat, Seubchat Saccavadit, Than Santaswang, Achara Tawatsin, Jiroj Sasipreeyajan

The Thai Journal of Veterinary Medicine

This experiment was designed to study the results of laboratory diagnosis of Mycoplasma gallisepticum (MG) infection in layer chicken receiving MG vaccines and MG organisms. One hundred and twenty 1-day-old-malelayer chickens were raised in separate isolation rooms and equally allocated into 4 separated groups. When 4 weeks old, groups 1, 2, 3 and 4 served as a negative control, a MG commercially inactivated vaccine group, a MG commercially live vaccine group and a MG infected group, respectively. In each group, ten birds were swabbed and bled when 4, 5, 6, 7, 8, 9 and 11 weeks old. Swab samples were …