Fig. 6

Mean (+ SE) Ascaridia galli IgY titre at one day before and 36 days after the first (of the total four) in-feed exposures to ascarid eggs embryonated in sterilised control soil (SC), sterilised soil with the fungus Pochonia chlamydosporia Biotype 10 (SF), non-sterilised control soil (NC) or non-sterilised soil with P. chlamydosporia (NF). Each bar represents the mean of 28–30 hens allocated into three replicate subgroups of 8 (one NC subgroup), 9 (two SC and two NF subgroups) or 10 hens. Different italicised letters above the bars indicate significant differences (P < 0.05, Tukey-Kramer’s adjustment for multiple comparisons) between the log-transformed titres