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Estrogenic Activity in Dehydrated and Suncured Forages

Estrogenic Activity in Dehydrated and Suncured Forages Summary A large number of dehydrated forage samples were obtained from various parts of the U. S. and assayed for apparent estrogen content. Also included were a number of suncured alfalfa, clover, and grass samples. Very large variations in apparent estrogen content were found between samples. These may be partially attributed to geographical location, differences in variety, cultural practice, stage of growth, or season of year at which the plants were harvested. Other factors shown to be involved are losses of estrogen during dehydration or subsequent storage of the meal. A very important factor appears to be the presence in meals of estrogen potentiators and inhibitors in differing proportions. This content is only available as a PDF. Author notes 1 A laboratory of the Western Utilization Research and Development Division, Agricultural Research Service, U. S. Department of Agriculture. 2 The authors wish to thank Miss Marion M. Sandomire for the statistical evaluations reported in table 4, and Mrs. Ann R. Gramps for the preparation of many of the samples for analysis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Animal Science Oxford University Press

Estrogenic Activity in Dehydrated and Suncured Forages

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ISSN
0021-8812
eISSN
1525-3163
DOI
10.2527/jas1960.191189x
Publisher site
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Abstract

Summary A large number of dehydrated forage samples were obtained from various parts of the U. S. and assayed for apparent estrogen content. Also included were a number of suncured alfalfa, clover, and grass samples. Very large variations in apparent estrogen content were found between samples. These may be partially attributed to geographical location, differences in variety, cultural practice, stage of growth, or season of year at which the plants were harvested. Other factors shown to be involved are losses of estrogen during dehydration or subsequent storage of the meal. A very important factor appears to be the presence in meals of estrogen potentiators and inhibitors in differing proportions. This content is only available as a PDF. Author notes 1 A laboratory of the Western Utilization Research and Development Division, Agricultural Research Service, U. S. Department of Agriculture. 2 The authors wish to thank Miss Marion M. Sandomire for the statistical evaluations reported in table 4, and Mrs. Ann R. Gramps for the preparation of many of the samples for analysis.

Journal

Journal of Animal Science – Oxford University Press

Published: Feb 1, 1960

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