Figure 2
From: From hatch to egg grading: monitoring of Salmonella shedding in free-range egg production systems
Salmonella in environmental dust. Bulk samples of environmental dust was collected from two free-range farms (Shed 1 and Shed 2).Total Salmonella load was tested using the MPN method upon collection (A, D). Only a single sample from Shed 1 was positive for Salmonella (A). Water activity (B, E) and total moisture content (C, F) were measured upon collect for all samples.