Experimental design
In the first part of the experiment the influence of ceftiofur
on the intestinal microbiota of the pigs was investigated.
For the experiments a barn with dimensions of
4.8 m× 1.9 m was divided in two boxes via a middle corridor
(width 1.60 m). As result of this areal separation a
direct contact of the grouped animals was excluded. To
minimize points of contact between both animal groups,
each box had its own stable equipment for cleaning and