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Thirty-one mares were used in an experiment to evaluate the effectiveness of three sustained-release injectable formulations of altrenogest and one formulation of medroxyprogesterone acetate (MPA) for long-term suppression of estrus and ovulation. Luteolysis was induced by injection of...

Storer, W. A.; Thompson, D. L., Jr.; Gilley, R. M.; Burns, P. J.
Elsevier, New York, USA
Journal of Equine Veterinary Science, 2009, 29, 1, pp 33-36