Title: Polycyclic ether antibiotic produced by a strain of streptomyces hygroscopicus

Abstract: A new polycyclic ether antibiotic produced by a strain of Streptomyces hygroscopicus under submerged fermentation conditions is useful in controlling coccidiosis in poultry and in improving feed utilization efficiency in ruminants.

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Inventors: Celmer, Walter D. (New London, CT, US)
Cullen, Walter P. (East Lyme, CT, US)
Moppett, Charles E. (Pawcatuck, CT, US)
Oscarson, John R. (Groton, CT, US)
Huang, Liang H. (East Lyme, CT, US)
Shibakawa, Riichiro (Handa, JP)
Tone, Junsuke (Chita, JP)

Application Number: 845491
Filing Date: 1977-10-26
Publication_date: 1979-04-17
Assignee: Pfizer Inc. (New York, NY)
Primary Class(es): 424/122 435/119, 435/886
Other Classes:
US Patent Ref:

4069316

Jan, 1978

Imada et al.

424/122.

Other Refs:
Primary Examiner: Goldberg, Jerome D.
Assistant Examiner:
Attorney: Connolly and Hutz