A growth-promoting additive for feeds consists of a commercial growth promoter as well as an aminoreductone of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, methyl or ethyl and R.sup.4 is an unsubstituted or substituted C.sub.1 -C.sub.20 -alkyl or alkenyl radical or a radical of an aminoacid.
一种用于饲料的促生长添加剂由商业促生长剂和式为##STR1##的
氨基还原酮组成,其中R.sup.1,R.sup.2和R.sup.3分别为氢,甲基或乙基,R.sup.4为未取代或取代的C.sub.1-C.sub.20-烷基或烯基基团或
氨基酸基团的基团。