This Decree of the Ministry of Agriculture sets out rules concerning the production of feedingstuffs and amends certain provisions laid down under the Decree implementing the Feedstuffs Act. These new provisions deal with (i) substances and products which may not be used for the production of feedstuffs, additive substances and premixes; (ii) undesirable substances and products, including their maximum allowed quantity in feedstuffs; and (iii) labelling of complete and supplementary feedstuffs.