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Journal of Dairy Science Vol. 59 No. 11 1960-1962
© 1976 by American Dairy Science Association ®
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Selenium and Vitamin E and Incidence of Retained Placenta in Parturient Dairy Cows. II. Prevention in Commercial Herds with Prepartum Treatment1

W. E. Julien2, H. R. Conrad and A. L. Moxon

Department of Dairy Science
and Department of Animal Science, Ohio Agricultural Research and Development Center, Wooster 44691

ABSTRACT

In a series of field experiments in Ohio involving 193 parturient cows of the Holstein and Guernsey breeds, the prophylactic efficacy of selenium and vitamin E was tested under field conditions. Herds initially were chosen because of a chronic problem with retained placenta which could not be related to a known etiological factor. Each herd was divided into three groups. Group A received an injection of 50 mg of sodium selenite 40 days prepartum and 680 units of alpha tocopherol acetate followed by the same treatment 20 days prepartum. Group B received a single injection of 50 mg of sodium selenite 20 days prepartum, and 680 IU of vitamin E. Group C served as the control. Incidence of retained placenta was reduced from a mean of 51.2% in control cows to 8.8% for animals injected with selenium and vitamin E. No differences in efficacy were between Group A and B, and it appears that the single 20 day prepartum injection of 50 mg of sodium selenite and 680 IU of alpha tocopherol acetate is an effective prophylactic for prevention of retained placenta.

FOOTNOTES

1 Approved as Journal Article No. 90-76, Ohio Agricultural Research and Development Center, Wooster 44691.

2 Data presented to the Graduate Faculty of The Ohio State University in partial fulfillment of the requirement for the degree Doctor of Philosophy (March, 1976).






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Copyright © 1976 by the American Dairy Science Association ®.