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Department of Biochemistry and Nutrition, University of Texas, Medical Branch, Galveston
Data have been presented which indicate the existence of a new and as yet unidentified factor important for the nutrition of the duckling. This factor (CSF) is found in cornstarch and certain refinery products of dextrose production as well as in crude dextrose itself. A deficiency of this factor manifests itself in the duck by a greasy, unkempt appearance with poor feathering, poor growth rate, and acute pancreatic fibrosis.
2 Present address: Departments of Biochemistry and Medicine, Tulane University Medical School, New Orleans, Louisiana.
Manuscript received 21 November 1952.