J. Anim Sci.
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J. Anim Sci. 1980. 50:391-393.
© 1980 American Society of Animal Science
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Induction of Parturition in the Ewe1

E. L. Harman2 and A. L. Slyter

South Dakota State University, Brooking 57007

Abstract

One-hundred and seventeen ewes were used in a study of induction of parturition. Ewes were treated with either 2 mg flumethasone (FLU), 15 mg prostaglandin F2{alpha}-THAM salt (PGF) or physiological saline (control) on day 141 of gestation, as determined by dates of marking by rams. Eighty-nine percent of the ewes treated with FLU and 33% of the ewes treated with PGF lambed within 72 hr post-treatment. More (P<.01) ewes treated with PGF or FLU lambed within 72 hr than did control ewes. The interval from treatment to parturition was shorter in FLU(P<.01) and PGF (P<.05) treated ewes than in ewes given saline.

Footnotes

1 Published with the approval of the Director of the South Dakota Agr. Exp. Sta. as Pub. No. 1609 of the Journal Series.

2 Present address: Dept. of Range Anim. Sci., Sul Ross State Univ., Alpine, TX 79830.






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Copyright © 1980 by the American Society of Animal Science.