Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1960 Calcium and phosphorus studies with baby pigs Dean Roland Zimmerman Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Agriculture Commons, and the Animal Sciences Commons Recommended Citation Zimmerman, Dean Roland, "Calcium and phosphorus studies with baby pigs " (1960). Retrospective Theses and Dissertations. 2777. https://lib.dr.iastate.edu/rtd/2777 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact
[email protected]. This dissertation has been microfilmed exactly as received Mic 60-4912 ZIMMERMAN, Dean Roland. CALCIUM AND PHOSPHORUS STUDIES WITH BABY PIGS. Iowa State University of Science and Technology Ph. D., 1960 Agriculture, animal culture University Microfilms, Inc., Ann Arbor, Michigan CALCIUM AND PHOSPHORUS STUDIES WITH BABY PIC-S by Dean Roland Zimmerman A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Swine Nutrition Approved: ^ Signature was redacted for privacy. Signature was redacted for privacy. L Charge of Ma joiy VWork Signature was redacted for privacy. Head of Maj Signature was redacted for privacy. Dean off Graduate College Iowa State University Of Science and Technology Ames, Iowa I960 ii TABLE OF CONTENTS Page INTRODUCTION 1 REVIEW OF LITERATURE 3 Calcium, and Phosphorus Requirement Studies with Swine 3 Calcium:Phosphorus Ratios and Vitamin D 5 Effect of Excess Calcium on Animal Performance 7 Factors Affecting Phosphorus Absorption 11 Dietary Factors Affecting Calcium Absorption llj.