American Cyanamid Company

Robert L Kennett, Jr

Sidney Kantor

This invention relates to methods and compositions for the control of protozoal infections in warm-blooded animals by administering to said animals a protozoacidally-effective amount of a new antibiotic designated LL-E19020.alpha., LL-E19020.beta. or a pharmaceutically and prophylactically acceptable salt thereof. The new antibiotics are produced by microbiological fermentation under controlled conditions using a new strain of Streptomyces lydicus subspecies tanzanius or mutants thereof.

Methods and compositions for controlling protozoal infections in

The present invention relates to methods and compositions for the control of protozoal infections, especially coccidial ones, in warm-blooded animals, such as meat-producing animals, i.e., poultry, by administering to the animals a protozoacidally-effective amount of a new antibiotic designated LL-D42067.alpha., NRRL 15734. This novel antibiotic is produced via a controlled conditioned microbiological fermentation using a new strain of Actinomadura madurae subspecies simaoensis or mutants thereof.

Methods and compositions for treating protozoal infections with a novel

The present invention relates to methods and compositions for the control of protozoal infections, especially coccidial ones, in warm-blooded animals, such as meat-producing animals, i.e., poultry, by administering to the animals a protozoacidally-effective amount of a new antibiotic designated LL-D42067.sub..beta., NRRL 15734. This novel antibiotic is produced via a controlled conditioned microbiological fermentation using a new strain of Actinomadura madurae subspecies simaoensis or mutants thereof.

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Lambertville, NJ, United States of America

Robert L Kennett, Jr