J. Anim Sci.
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J. Anim Sci. 1969. 29:808-815.
© 1969 American Society of Animal Science
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Effects of Vitamin E and Selenium Deficiencies in Sheep Fed a Purified Diet during Growth and Reproduction

J. G. Buchanan-Smith1,2,, E. C. Nelson3, B. I. Osburn4, M. E. Wells2 and A. D. Tillman2

Oklahoma Agricultural Experiment Station, Stillwater,5,6,

Abstract

Vitamin E is necessary for reproduction in rats (Evans and Bishop, 1922) and chickens (Card, Mitchell and Hamilton, 1930). Early work with sheep, cattle and goats indicated vitamin E did not affect reproduction in these species (Gullickson and Fitch, 1944; Gullickson, Fitch and Gilmore, 1948; Gullickson et al., 1949; Thomas, LaGrange and Culbertson, 1942). However, Virtanen (1966) has demonstrated that the addition of Vitamin E to a purified diet corrected irregularities of the estrus cycle in dairy cows. At present, the primary interest of vitamin E in the nutrition of farm animals is to prohibit myopathy in the young fed diets containing fat (Blaxter, 1952). Selenium prevents myopathies associated with pasturing sheep and cattle in specific areas of the world, for example New Zealand, and poor reproductive performance has been associated with this condition (Hartley and Grant, 1961). This paper reports the results of experiments conducted to reevaluate the roles of vitamin E and selenium in reproduction of sheep.

Footnotes

1 Present address: Animal Science Department, University of Guelph, Guelph, Ontario, Canada.

2 Department of Animal Sciences and Industry.

3 Department of Biochemistry.

4 Department of Veterinary Pathology.

5 Approved by the Director.

6 Partial financial support provided by PHS Research Grant AM-09191;National Institute of Arthritis and Metabolic Diseases.






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Copyright © 1969 by the American Society of Animal Science.