has undergone at slaughter, on the basis of a random sample of cloacal swabs from at least 60 birds from each flock concerned, a virus isolation test for Newcastle disease, carried out in an official laboratory, in which no avian paramyxoviruses with an Intravenous Pathogenicity Index (IVPI) of more than 0,4 were found;
na njej je bilo ob zakolu, na podlagi naključnih vzorcev brisov kloake, vzetih pri najmanj 60 pticah iz vsake jate, narejen izolacijski test atipične kokošje kuge, ki je bil opravljen v uradnem laboratoriju in pri katerem ni bilo ugotovljenih aviarnih paramiksovirusev z indeksom intravenozne patogenosti (IVPI), večjim od 0,4;