Inventors transfer their rights to the applicant. Process for obtaining antibiotics to combat des protozoan diseases in warm blooded animals.

摘要

Process for the production of antibiotics d42067a designated by - and - d42067b, formulas (I and II), which have applications to combat protozoan diseases in warm blooded Animals, especially Poultry. Is to promote the simanoensis subspecies by aerobic cultivation of the organism.Madurae Actinomadura, which has the characteristics of identification of NRRL 15734, or a Mutant of the same product d42067a Antibiotic LL or LL d42067b; followed by extraction of the Antibiotic Medium.The cultivation is performed in a sterile liquid medium, which contains similar sources of carbon, nitrogen and inorganic salts at a temperature between 24c and 32C to a pH between 7 and 7.6, during a period of 90 to 200 hours.