2,3-DISUBSTITUIERTE CHINOXALINE ALS LEISTUNGSFOERDERER FUER TIERE

摘要

The present invention relates to the use of 2,3-disubstituted quinoxalines of the formula (I) in which R<1> represents halogen, OH, SH, alkoxy, aryloxy, alkylthio or arylthio, R<2> represents halogen, OH, SH, alkoxy, aryloxy, alkylthio or arylthio, R<1> and R<2> together represent the radical of the formula in which X represents O or S, R<3> represents hydrogen, halogen, CN or the radicals R<4> represents H, alkyl, halogen, NO2 or the -CONR<5>R<6> radical, R<5> represents H, alkyl or cycloalkyl, each of which is optionally substituted or aryl which is optionally substituted, R<6> represents H, alkyl or cycloalkyl, each of which is optionally substituted, or aryl which is optionally substituted or the -S-R<7> radical, R<5> and R<7>, together with the adjacent N atom, can form an optionally substituted heterocyclic ring which can optionally contain N atoms or O atoms as further hetero atoms; R<7> represents optionally substituted alkyl or aryl, for promoting the performance of animals, in particular for influencing the rumen fermentation of ruminants.