J. Anim Sci.
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J. Anim Sci. 1973. 37:942-947.
© 1973 American Society of Animal Science
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Selenium Balance in the Pig as Affected by Selenium Source and Vitamin E1

A. W. Groce2, E. R. Miller, J. P. Hitchcock, D. E. Ullrey and W. T. Magee

Michigan State University, East Lansing 488233

Abstract

Three selenium (Se) balance trials were conducted with young pigs to compare supplements (0.2 ppm Se) of natural Se (from seleniferous corn) vs. selenite Se, a stored selenite-glucose premix (in which some selenite had apparently been reduced to elemental Se) vs. a freshly prepared selenite-glucose premix, and a supplement of 22 IU of vitamin E (E) per kilogram of diet vs. no E supplement. The basal diets consisted of corn and soybean meal plus minerals and vitamins (except E) and contained 0.041 to 0.047 ppm natural Se. A higher proportion of Se from seleniferous corn was excreted in the feces (P < .05) and a lower proportion excreted in the urine (P<.01) as compared to Se from sodium selenite. An E supplement significantly reduced fecal Se excretion of pigs fed seleniferous corn. Selenium excretion in both feces and urine tended to be greater, and Se retention concomitantly less, on the stored selenite premix than on the premix which had been freshly prepared. Vitamin E supplementation of the freshly prepared selenite premix tended to increase both fecal and urinary Se excretion and to reduce Se retention.

Footnotes

1 Published with the approval of the Director of the Michigan Agricultural Experiment Station as Journal Article No. 6278.

2 Presently assistant professor, Department of Agriculture, University of Arkansas at Monticello, Monticello.

3 Department of Animal Husbandry, College of Agriculture and Natural Resources.






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Copyright © 1973 by the American Society of Animal Science.