Fig. 6
From: Environmental contamination and transmission of Ascaris suum in Danish organic pig farms
Ascaris suum eggs in soil from organic farms. Mean number of eggs/kg dry soil (+ SEM) on pastures on five farms (A–E). Results are based on duplicate samples from 1–3 pastures for each of three groups of pigs across four seasons. NP signifies the absence of a given pasture. Farm E results for dry and lactating sows are identical as they were kept on the same pasture