Figure 1.

Percentage of viable animals (A) and percentage of total weight lost (B) at the end of the nursery period in relation to the type of management (mother or random), the percentage of vaccinated animals (PVA—ranging from 0%–100% of the population) and the percentage of infected animals at the time of vaccination. Orderly movements of piglets consist of allocating them to nursery pens according to the identity of their mothers and then filling the fattening pens according to the same nursery distribution (Mother) c.f. random movements whereby piglets are allocated to both nursery and fattening pens at random (Random).