A.S. Series 76-28
Vitamin D is necessary for absorption and metabolism of calcium and phosphorus in the body. A deficiency of this vitamin will result in rickets. Most feedstuffs used in swine diets are essentially devoid of vitamin D. The animal can receive the necessary vitamin D if exposed to the ultraviolet rays of the sun. Therefore, pigs raised in confinement with no opportunity to be exposed to sunshine need supplemental vitamin D in their diets.
Number of Pages
Agricultural Experiment Station, South Dakota State University
Wahlstrom, Richard C. and Libal, George W., "Supplemental Vitamin D in Pig Diets" (1976). South Dakota Swine Field Day Proceedings and Research Reports, 1976. 5.