Fig. 2

Seasonal occurrence of Ascaris suum eggs in bedding material in relation to faecal egg counts. Number of eggs/g dry straw in resting, intermediate and latrine areas of pens (left Y-axis) and mean number of eggs/g faeces (right Y-axis) for starter and finisher pigs on five organic farms (A–E). Results are means of duplicate samples from each of two pens for each of four seasons, but it was not always possible to identify all three area types in each pen. Occasions of deworming are indicated by arrows