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Efficacy of Supplemental Selenium in Reproductive Diets on Sow and Progeny Serum and Tissue Selenium Values^{1, 2,}

The Ohio State University, Columbus 43210 and Ohio Agricultural Research and Development Center, Wooster 44691

Abstract

Two groups of sows were fed either a corn-soybean meal diet without (Control) or with (Control + Se) .1 ppm of supplementary selenium. A third group was fed a low-selenium semi-purified diet. Serum and tissue selenium values of the sows and their progeny were measured through two reproductive cycles. All litters were fed a low-selenium, semi-purified diet to evaluate the selenium status of the pigs and the contribution of selenium from the sow.

When the Control diet was fed to sows, their serum selenium values were higher during both gestation periods than during lactation with values declining in the second parity as compared to the first. When the Control + Se diet was fed, serum selenium levels were higher (P < .01) than those from the Control group and were maintained at relatively constant values throughout both reproductive cycles. Serum selenium from sows fed the semi-purified diet declined over the entire experimental period.

¹ Approved for publication as Journal Article No. 22–74 by the Director of Ohio Agricultural Research and Development Center, Wooster.

² Appreciation is expressed to L. Mangan, L. Penhale and the OSU Meat Laboratory for aid in the collection of blood and tissue and to Dr. L.A. Swiger for his help with the statistical analysis.

³ Department of Animal Science, Ohio Agricultural Research and Development Center, Wooster.

⁴ Department of Animal Science, The Ohio State University, Columbus.

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