Figure 4.
Feeder cleaning time per feeder by personnel. After weaning, the feeders were washed by three farm employees and the cleaning times for several feeders per feeder type were recorded. The number of feeders used was 19, 23, and 25 for the PVC tube, Rotecna, and SowMax feeder, respectively. Each color represents a distinct farm employee. The results varied highly between the people who washed the feeders. The range of cleaning time for the three people was from 30 to 71 s (red), 40 to 102 s (blue), and 30 to 39 s (green), respectively.
