1. M. G. Vavich,
2. Anne Wertz2 and
3. A. R. Kemmerer

+ Author Affiliations

1. Department of Nutrition, College of Agriculture, University of Arizona

+ Author Notes

• ↵1 This work was supported in part by a Grant-in-Aid from the American Dehydrators Association, Kansas City, Missouri.
• ↵2 On leave from University of Massachusetts, Amherst, Massachusetts, Sept. 1951 to June 1952.

Abstract

INVESTIGATIONS in the last several years have shown there are still some unidentified factors in feeds necessary for optimum nutrition. Only a few of these investigations, however, have been concerned with the existence of these factors in plant products. Carlson et al. (1949) and Menge et al. (1952) reported factors in yeast, and Cravens et al. (1951) factors in yeast and wheat bran that stimulate the growth of chicks. Bowland et al. (1948) found that alfalfa contained factors which increase the rate of growth of rats fed purified diets. Kohler and Graham (1951) observed that water extracts of leafy green vegetables stimulated the growth of chicks, and Scott (1951) noted the same effect in turkey poults. This growth-stimulating substance, however, was destroyed by drying and was consequently lacking in the dehydrated materials (Kohler and Graham, 1951).

This paper presents data which indicate that dehydrated alfalfa contains factors which stimulate the . . .

• Received September 22, 1952.

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