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University of Illinois, Urbana
Abstract
Seventy-two pigs 1 to 2 days of age were fed a basal diet containing 39 ppm of iron, and ferrous sulfate and ferric ammonium citrate were added to provide total iron of 127 and 126 ppm, respectively. Under the specified conditions, hemoglobin values and weight gains indicated that ferric ammonium citrate was as efficient an oral hematinic as ferrous sulfate. Eighteen baby pigs were fed synthetic diets containing 10, 52 or 86 ppm of iron with ferric ammonium citrate supplying the additional iron. A significant linear response of hemoglobin value to level of iron was obtained. The highest level of iron (86 ppm) supported the maintenance of adequate hemoglobin values, while the intermediate level of iron was sufficient to support adequate weight gain.
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