J. Anim Sci.
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J. Anim Sci. 1978. 47:639-647.
© 1978 American Society of Animal Science
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Influence of Method of Corn Storage and Vitamin E and Selenium Supplementation on Pig Survival and Reproduction1

L. G. Young2, R. B. Miller3, D. M. Edmeades2, A. Lun2, G. C. Smith2 and G. J. King2

University of Guelph, Guelph, Ontario

Abstract

Eighty pigs, 40 boars and 40 gilts, approximately 5 weeks of age were used in an investigation of the influence of method of corn storage, level of vitamin E and/or selenium supplementation on survival and reproduction. Corn stored as acid treated high moisture corn contained approximately 1 {varepsilon}g/g dry matter of {alpha}-tocopherol. Similar corn artificially dried following harvesting contained approximately 5.7 {varepsilon}g/g dry matter of {alpha}-tocopherol. Sixty-five percent of the pigs which did not receive either supplemental selenium or vitamin E died. Mortality appeared slightly higher in pigs fed the artificially dried corn. Supplementation of the corn based diets with either .10 ppm Se or 11 IU vitamin E per kg appeared to protect the pigs against the deficiency of vitamin E or selenium . One pig fed supplemental vitamin E died. No postmortem examination was conducted and therefore the cause of death was not determined. Selenium supplementation of the diets fed to gilts resulted in increased tissue, serum and colostrum selenium as well as selenium in the tissues and serum of their progeny. Vitamin E supplementation of gilt diets resulted in increased serum and colostrum {alpha}-tocopherol as well as the {alpha}-tocopherol content of the serum of their progeny.

Within the limitations of this trial, no obvious effect of supplemental selenium or vitamin E was observed in boars or gilts other than the mortality indicated previously. However, the numbers of animals per treatment in the reproduction phase were small.

Footnotes

1 Financial support provided by The Ontario Ministry of Agriculture and Food, Agriculture Canada and the National Research Council of Canada.

2 Department of Animal and Poultry Science.

3 Department of Pathology.






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