MICROBIOLOGICAL PROCESS FOR MAKING UK-61,689 AND MICROORGANISMS USEFUL THEREFOR

摘要

Actinomadura roseorufa mutants characterized bythe ability to produce by fermentation UK-61,689, anacidic polycyclic ether anticoccidial antibioticpreviously available only by selective acid hydrolysisof UK-58,852; and Actinomadura roseorufa having theidentifying characteristics of ATCC 53,666, ATCC53,665, ATCC 53,664 and ATCC 53,674.