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Journal of Dairy Science Vol. 40 No. 12 1590-1598
© 1957 by American Dairy Science Association ®
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Milk Response from Feeding Diethylstilbestrol to Identical-Twin Cows during Complete Lactations1

C. B. Browning, F. C. Fountaine, G. B. Marion and F. W. Atkeson

Department of Dairy Husbandry, Kansas Agricultural Experiment Station, Manhattan

ABSTRACT

Lush green pasture has been long recognized as having a stimulating effect on milk production. The possibility that plant estrogens are associated with this effect was suggested by Bartlett and coworkers (1). Many workers (5, 6, 9-11, 16, 22) have used diethylstilbestrol or related compounds to induce udder growth and lactation in dairy animals. Also, work has been conducted to determine the galactopoietic effects of estrogenic materials on lactating cows (7, 8, 12, 20). In recent years, the feeding of stilbestrol-supplemented feeds to beef cattle has become economically important (3, 18, 19).

The study reported here was undertaken to determine the effects on milk production of feeding low levels of diethylstilbestrol to dairy cows.

EXPERIMENTAL PROCEDURE

Before setting up the principal experiment, 17 cows from the Kansas State College dairy herd were used in a preliminary study, to determine the optimal level of diethylstilbestrol (DES) that would stimulate milk production.

FOOTNOTES

1 Supported in part by a grant from Eli Lilly and Company, Indianapolis, Indiana. A portion of these data was taken from a thesis submitted by the senior author to the Graduate School of the Kansas State College of Agriculture and Applied Science, in partial fulfillment of the requirements for the degree of Master of Science. Contribution No. 254.






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Copyright © 1957 by the American Dairy Science Association ®.