Fig. 3

Box plots depicting the age dynamics of faecal oocyst counts (median counts: solid black line) per week of age. Y-axis indicates log₁₀ oocysts per gram faeces (OPG). X-axis indicates age in weeks (3 to 8) of the examined turkey groups. a OPG of groups from grow-out diagnosed with necrotic enteritis (NE). NE occurrence is indicated as a dotted line (NE, arrow pointing at the line) in relative levels. The peak value at five weeks of age corresponds to detection of NE in 17.9 % of the grow-outs at that age. b OPG from grow-outs without NE diagnosis. The graphs are based on data from 39 grow-outs raised on 16 different farms