Effect of Vitamin E and Selenium on Tissue Composition of Young Pigs

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Abstract
Forty 2- or 3-week old pigs were used to study the effects of vitamin E and selenium supplementation on tissue composition. Liver and muscle samples were obtained from pigs killed at the start of the experiment, and liver, muscle and kidney were obtained from the animals fed the diets for 56 days. Tissue samples were lyopholized and analyzed for selenium, calcium, zinc, magnesium, copper, iron, sodium, potassium, manganese and ether extract. In muscle, the selenium concentration decreased significantly during the feeding period, but muscles from pigs fed selenium had significantly higher selenium levels than muscles from pigs not fed selenium. No difference was found between the initial level of selenium and the level of selenium in the livers of pigs fed selenium. Livers of pigs fed the selenium-deficient diets were significantly lower in selenium concentration than livers of pigs fed selenium. Calcium levels were significantly increased in the livers of the pigs fed the deficient diet, and sodium levels were increased in the muscle of pigs from the same group. Manganese was significantly increased in the livers and kidneys of pigs fed supplemental vitamin E or selenium. Zinc and copper were significantly decreased in kidney tissue when vitamin E was fed. Magnesium was significantly increased in kidney tissue when vitamin E was fed. Other minerals and ether extract were not affected by selenium1 or vitamin E supplementation. Copyright © 1971. American Society of Animal Science. Copyright 1971 by American Society of Animal Science.

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