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The President's Annual Address

The Nutritive Value of the Non-Protein of Feeding Stuffs

Abstract

In accordance with time-honored custom, the program calls at this point for an address by the retiring President. In the performance of this duty, it has seemed to me that I might hope to be of more service to you by taking up some special topic related to animal nutrition than by attempting to discuss any of the broader questions concerning the promotion of research in our subject. Accordingly, I have selected as my topic "The Nutritive Value of the Non-protein of Feeding Stuffs." This is a problem upon which a considerable number of investigations have been made during recent years, while the point of view has also been materially changed through the recognition of the fact that in normal digestion food protein is largely or wholly split up into products quite similar chemically to some of the substances included in the non-protein of plants. I shall consider solely the value of these substances as sources of nitrogen to the animal body, leaving out of account entirely the question of their energy values.