J. Anim Sci.
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J. Anim Sci. 1971. 33:629-637.
© 1971 American Society of Animal Science
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Influence of Ovarian Hormones on Blood Serum Fatty Acids1

Alice S. Scott2, L. W. Aurand3, L. C. Ulberg and A. J. Clawson4

North Carolina State University,3 Raleigh 27607

Abstract

A study was made of the effects of estrus and of exogenous ovarian hormones on the changes in composition of blood serum fatty acids. Seven cows were used in the study; four having normal estrous cycles, and three which were ovariectomized. Also, five gilts were studied during normal estrous cycles. Subsequently, four of the five gilts were ovariectomized and treated with hormones. The exogenous hormones used were progesterone and estradiol benzoate. Serum fatty acids were determined by gas chromatography. Results indicate that cyclic changes occurred in the fatty acid composition corresponding to the stage of the estrous cycle. In the ovariectomized animals, both exogenous estrogen and progesterone caused an increase in the unsaturated fatty acids (primarily oleic add and linoleic acid), while the saturated fatty acids (palmitic acid and stearic acid) were little affected. As a consequence, it was concluded that the composition of unsaturated fatty acids in the blood serum of bovine and porcine females was influenced by ovarian hormones.

Footnotes

1 Paper No. 3119 of the Journal Series of the North Carolina State University Agricultural Experiment Station, Raleigh, N.C. Contribution from the Departments of Food Science and Animal Science and supported in part by Public Health Service Research Grant ED 00281 from the Food and Drug Administration.

2 Present address: School of Home Economics, East Carolina University, Greenville, N.C.

3 Department of Food Science.

4 Department of Animal Science.






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Copyright © 1971 by the American Society of Animal Science.