competent authoritymeans the authority or authorities of a Member State as designated under Article 3 of Regulation (EC) No 2160/2003 of the European Parliament and of the Council.
flockmeans all poultry (such as broiler) of the same health status kept on the same premises or in the same enclosure and constituting a single epidemiological unit;
slaughter batchmeans a delivery of broilers which have been raised in the same flock to a slaughterhouse on one single day;