PYRIDAZINO 4,5-B CHINOXALINE 5,10-DIOXYDEDERIVATEN, WERKWIJZE TER BEREIDING DAARVAN EN PREPARATEN, DIE HEN BEVATTEN.

摘要

The invention relates to fodder concentrates, fodder additives and fodders having antimicrobial and/or weight-gain increasing effects which comprise as active ingredient a new compound of the general formula (I) /I/ wherein R represents a C1-20 alkyl, a C1-6 alkoxy group, an optionally substituted C6-10 aryl group, a phenyl-(C1-3 alkyl), a C3-7 cycloalkyl or a 5 or 6 membered heterocyclic group containing one or two nitrogen and/or oxygen and/or sulfur atom(s), or a biologically acceptable acid addition salt of a basic compound of the general formula (I) together with a suitable inert, solid or liquid carrier or diluent. The invention relates also to the preparation of the new compounds of the general formula (I).