J. Anim Sci.
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J. Anim Sci. 1984. 58:351-355.
© 1984 American Society of Animal Science
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Effect of Supplemental Selenium on Pancreatic Function and Nutrient Digestibility in the Pig1

R. S. Adkins2 and R. C. Ewan

Iowa Agriculture and Home Economics Experiment Station3, Ames 50011

Abstract

The effect of Se deficiency on pancreatic digestive enzyme activity and nutrient digestibility was studied by using pigs weaned at 3 wk of age from sows fed a diet deficient in Se and low in vitamin E. Pigs were fed a Torula yeast diet supplemented with 100 IU dl-{alpha}-tocopheryl acetate/kg of diet. Treatments were levels of supplemental Se of 0, .025, .050, .075 or .100 ppm. Apparent digestibility was determined at the end of the second and fourth week. Digestive enzyme activity, glutathione peroxidase (GSH-Px) activity and Se concentration were determined in pancreatic tissue at the end of the 4-wk experiment. Selenium concentration in the pancreas increased linearly (P<.01) and quadratically (P<.05) in response to increasing level of Se supplementation. The correlation between pancreas Se level and GSH-Px activity was .36 (P<.05). Supplementation of Se had no effect on pancreas weight, protein content or the activity of pancreatic trypsin, chymotrypsin, {alpha}-amylase or lipase. Apparent digestibility increased linearly for dry matter (P<.01) and N (P<.05) as Se supplementation increased. There was however, no significant fect on ether extract digestibility. Apparent digestibilities were higher (P<.01) at 4 wk than those measured at 2 wk.

Footnotes

1 Journal Paper No. J-10864 of the Iowa Agr. and Home Econ. Exp. Sta., Ames. Project No. 2338.

2 Present address: International Nutrition, Inc., 6664 ‘L’ St., Omaha, NE 68117.

3 Dept. of Anim. Sci.






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Copyright © 1984 by the American Society of Animal Science.