D. Mark Hegsted,
R. C. Mills,
G. M. Briggs,
C. A. Elvehjem and
E. B. Hart
Department of Biochemistry, College of Agriculture, University of Wisconsin, Madison
1. Biotin concentrates and free crystalline biotin have beenfound to prevent a typical dermatitis and to promote growthin chicks.
2. The biotin requirement of the chick is at least710µg. per 100 gm. of ration.
1 Published with the approval of the Director of the WisconsinAgricultural Experiment Station. Supported in part by grantsfrom the Wisconsin Alumni Research Foundation and the WorksProgress Administration.