In Decision 94/360/EC(3), the second indent of paragraph 1 of Article 1(a) is replaced by the following text: '-two official samples shall be taken from ech consignment and examined for residues of each of the xenobiotic hormones melengestrol acetate, trenbolone, zeranol, and stilbenes including diethystilboestrol, and for abnormally high levels of residues of the natural hormones 17 beta oestradiol, progesteron and testosterone.'