Evaluation of efficacy of Mycoplasma gallisepticum 6/85 live vaccine
2006
Yoon, H.J. (Kangwon National University, Chuncheon, Republic of Korea) | Kang, Z.W. (Kangwon National University, Chuncheon, Republic of Korea) | Jin, J.D. (Kangwon National University, Chuncheon, Republic of Korea) | Shin, E.K. (Kangwon National University, Chuncheon, Republic of Korea) | Jeong, Y.H. (Intervet Korea, Seoul, Republic of Korea) | Jeong, J.H. (Intervet Korea, Seoul, Republic of Korea) | Hahn, T.W. (Kangwon National University, Chuncheon, Republic of Korea), E-mail: twhahn@kangwon.ac.kr
Mycoplasma gallisepticum (MG) continues to persist in many commercial layer farms in Korea, resulting in losses in egg production. Bacterins and live attenuated vaccines have been used for the prevention of losses caused by MG. One of these attenuated vaccines, MG 6/85 vaccine has been reported to be safe and efficacious in layers. However, MG 6/85 vaccine has not been evaluated for its safety and its efficacy in any commercial layer in Korea. Six-week-old specific pathogen-free (SPF) chickens were vaccinated with MG 6/85 vaccine by aerosol and were challenged with virulent MG R strain at 4 weeks after vaccination.
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