Fig. 2

Plasma antibody titres against Histomonas meleagridis (a) and concentration of plasma alpha (1)-acid glycoprotein (AGP) (b) in uninfected (green dots) and infected (red dots) hens throughout experimental weeks. Each dot in the boxplot represents an individual hen. The vertical line inside the boxplots shows the sample median, while the lower and upper end of the box represents the 25th and 75th quantiles respectively. Significant (P < 0.05) differences are marked with (*)