With this adjustable apparatus sheep aged from five months to five years and varying in mass from 16-95 kg could be restrained effectively. Cercarial suspension was spilt by only 2/44 sheep during infestation with Schistosoma mattheei. Using a battery of seven cages, it was possible to infest 23 sheep, each for 30 minutes, in one day. No cercariae were more than 4 and a half hours old at the end of exposure.
The articles have been scanned in colour with a HP Scanjet 5590; 300dpi.
Adobe Acroabt XI was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.