Division 2.2.2 Second stage: sampling on the holding

In each selected breeding herd and production herd the pens, yards or groups of breeding pigs over six months of age to be sampled will be randomly selected.

The number of pens, yards, or groups to be sampled must be proportionally allocated according to the numbers of breeding pigs in the different stages of production (pregnant, non-pregnant, and other categories of breeding pigs). The exact age categories to be sampled are not prescribed, but this information shall be collected during the sampling.

Breeding pigs that have arrived recently to the herd and are held in quarantine shall not be included in the Salmonella and MRSA surveys.