| 摘要 |
<p>A feed supplement for arthropods, in particular for lepidopteran larvae, comprising a low alkyl ester of a biologically active acid or alpha-amino acid. Said alkyl esters of a biologically active acid or alpha-amino acid have general formula (I), in which: X is hydrogen or NH2; R1 is a straight or branched alkyl or alkenyl group, containing 3 to 6 carbon atoms, optionally substituted with at least one hydroxy, carboxylic, amino, amido, guanidyl, thio, methylthio, phenyl or imidazolyl group; and R2 is a group selected from methyl, ethyl and propyl.</p> |
