EVALUATION OF EFFICACY OF FORMALIN TREATED M YCOPLASMA GALLISEP'fICUM VACCINE IN BROILER CHICKENS

Authors

  • Rozina Anwar Institute of Environmental Studies, University of Karachi-75270, Pakistan
  • M Altaf Khan Institute of Environmental Studies, University of Karachi-75270, Pakistan

Keywords:

Evaluation, Mycoplasma vaccine, Formalin treatment, Broiler chicken, Bacterin .

Abstract

To minimize the local problem of Mycoplasma gallisepticum (MG) the potential of two indigenous MG isolates (MI- 203 and MI-211) was utilized for vaccine development. Formalin treated vaccines were developed and efficacy was evaluated in female broiler chickens (Cobb). Both the vaccines were found effective in providing protection against MG­ S6_ challenge that caused 11.5 to 23.3% body weight losses as compared to negative control as well as vaccinated cluckens. Besides t_hese i nactivated vaccines, the effectiveness of MG-F Jive vaccine was compared with that of mact1vated test vaccmes. MG-F Jive vaccine expressed its seemingly low pathogenic character by exhibiting 5.5 to 9.3% reduced body weight gain as compared to control chickens. The study suggests that vaccines prepared from local ISOiates (MI-203 and MI-211) are effective in providing protection against challenge with MG-S6 by providing better growth rate and total body weight gain , feed uptake and conversion efficiency, eliminating morbidity and keeping chickens infection free.

Downloads

Published

2002-08-26

How to Cite

Anwar, R., & Khan, M. A. (2002). EVALUATION OF EFFICACY OF FORMALIN TREATED M YCOPLASMA GALLISEP’fICUM VACCINE IN BROILER CHICKENS. Biological Sciences - PJSIR, 45(4), 284–290. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/1808