The 2016 Conference of Chinese Society of Veterinary Science

Efficacy of a Mycoplasma hyorhinis subunit vaccine in a pig farm in Taiwan

CW Hsu, JP Wang, CY Wu, WZ Huang, HJ Lin, JH Lin, ZW Chen

Mycoplasma hyorhinis causes mainly fibrinous polyserositis, pneumonia and arthritis in pigs. Infected pigs showed growth retardation and more susceptible to other pathogens leading to a great economic loss in swine industry. Vaccination is the most effective strategy to control and prevent M. hyorhinis infection. The objective of the study is to evaluate the efficacy of a M. hyorhinis subunit vaccine in a commercial pig farm in Taiwan. It was indicated that the vaccine is safe after 1 dose injection in pigs. After a single dose vaccination, immunized pigs showed an improvement in average body weight gain and serological conversion, indicating the vaccine is effective in the field. Collectively, this study indicated a potential M. hyorhinis subunit vaccine prototype to improve pig growth performance in the field.