In this study, we examined oral administration with recombinant R7 (rR7) antigen expressed in Escherichia coli using chicken leucocytozoonosis subunit vaccine (LV)-vaccinated and unvaccinated chickens. Only LV-vaccinated chickens showed re-induction of anti-second-generation schizont (2GS) antibody. Also, LV-vaccinated chickens whose anti-2GS antibody titer was middle-level showed increases of the antibody titer compared to vaccinated-control chickens (P>0.01, >0.05) after oral administration with rR7 antigen.
CITATION STYLE
Ito, A., Gotanda, T., Kobayashi, S., Kume, K., Sugimoto, C., & Matsumura, T. (2005). Increase of antibody titer against Leucocytozoon caulleryi by oral administration of recombinant R7 antigen. Journal of Veterinary Medical Science, 67(2), 211–213. https://doi.org/10.1292/jvms.67.211
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