Phytate Phosphorus Content of Feed Ingredients Derived from Plants

This is the authors' abstract. We don't add key points for this paper.

A portion of the phosphorus in feed ingredients of plant origin is present as the mineral salt of phytic acid. Phytate phosphorus is either unavailable to, or poorly utilized by, the chick. In addition, phytic acid chelates mineral elements, including calcium, and thereby reduces their availability in whole or part. However, the quantitative effect of phytic acid on the total dietary level of any element in a feed has been neglected. It is important, therefore, to know the phytic acid content of feeds in order that adequate amounts of essential elements may be supplied, particularly phosphorus and calcium. Common (1940), McCance and Widdowson (1944) and Mollgaard (1946) have reported the phytic acid content of various feed ingredients, but limited information is available for those currently used in the United States. This report lists phytate phosphorus content of many feed ingredients used in poultry rations. EXPERIMENTAL PROCEDURES AND RESULTS Feed ingredients . . .