| 摘要 |
Feed additives for promoting the growth of domestic and productive animals, which additives contain as active ingredient at least one compound of the formula I <IMAGE> (I) wherein R1 represents a 5- or 6-membered, N-, S- or O-containing heterocyclic-aromatic radical, optionally substituted by halogen, lower alkyl, phenyl, nitro, cyano, (R3)2NCO-, (R3)2N-, R3O-, R3SO2-, R3SO- or R3S-, R2 represents lower alkyl, alkenyl or cycloalkyl optionally bound by way of an alkylene bridge, and R3 represents lower alkyl, alkenyl or alkoxyalkyl having a total of up to 8 carbon atoms, OR QUATERNARY AMMONIUM COMPOUNDS OR N-oxides of the N-containing heterocyclic-aromatic radicals, together with suitable carriers and/or distributing agents. |
