Figure 3From: Recombinant proteins from Gallibacterium anatis induces partial protection against heterologous challenge in egg-laying hens Titer values of protein specific IgG in serum. Sera was obtained and analyzed from immunized and non-immunized birds before each immunization, before challenge, and 48 h after challenge. Sera from non-immunized birds did not show any significant differences at the different time-points and are therefore represented with one bar. Significant differences (P < 0.05) to the control group are marked with *.Back to article page