The Effect of Autoclaving Soybean Protein and the Addition of Ethylenediaminetetractic Acid on the Biological Availability of Dietary Zinc for Turkey Poults

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Abstract
Autoclaving of the isolated soybean protein3 used in a zinc-deficient ration improved the growth of poults. The addition of ethylenediaminetetracetic acid (EDTA) to a diet containing the soybean protein also reduced the requirement for zinc. The ratio of the width of the tarsometatarsus to its length was significantly reduced by the addition of either zinc or EDTA to a basal ration containing soybean protein.