The trials were conducted in two separate slaughter-pig houses. In one Stalosan F was applied, the other housed the control group. Any other treatment, feed, layout, etc., was the same for both houses. The pigs had been bought from local piglet farmers and were delivered to the slaughterhouse at a minimum slaughter weight of 80 kg. The main problem of the herd was dysentery, and the registrations recorded in connection with the trial were consequently: drug treatment and mortality, stating the cause.

A financial calculation shows that the additional profit was GBP 1.67 per hog when applying Stalosan F. This only includes medicine, Stalosan F and dead hogs. The labour involved in administering the medicine is not included, and, similarly, the savings from fewer feed days when using Stalosan F are not taken into account.