Science: Growth Drug

Lederle Laboratories developed aureomycin, an antibiotic, to treat such human ills as whooping cough, typhus and Rocky Mountain spotted fever. This week Drs. E.L.R. Stokstad and T.H. Jukes of Lederle told a Philadelphia convention of the American Chemical Society that aureomycin has an unexpected non-medical talent: it makes domestic animals grow faster.

The Lederle scientists were working on vitamin B-12 (another growth promoter), one of whose sources is the fermentation product from which aureomycin is separated. To their astonishment, they found that this material had more effect on the growth of chicks than...

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