With the
exception of one animal, which died after infection, the
observed clinical and pathological changes in the control
group were mild. This was intended in the light of the
anticipated disease or infection-moderating effect of garlic.
Because the induced clinical and pathological changes
were mild, they were comparable to the majority of A.
pleuropneumoniae infections at farm level, where they
generally lead to subclinical, chronic infection rather than
the dramatic course of an acute, severe infection. The drop
in feed intake observed immediately after administration
of the pathogen A. pleuropneumoniae to the pigs was likely
caused by stress rather than by acute illness, because the
next day the feed intake was already back to normal.