Faecal shedding from the different breeds of sheep inoculated with MAP.
A The number of faecal culture positive results is shown for each breed over the course of the trial, from 6 pooled faecal cultures/breed group with 6 animals per pool. B Faecal shedding of MAP in sheep from each breed that developed clinical disease, as measured by qPCR. MAP DNA quantity in picograms (pg) is shown on the γ-axis on a logarithmic scale. The grey line at 0.1 pg indicates results above which are considered to be in the high range of qPCR results, approximately equivalent to > 10,000 MAP/g of faeces.