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Prolonging function of the corpus luteum (CL) is a method of suppressing estrus that uses continued secretion of endogenous progesterone to keep mares out of heat naturally. The most common method of prolonging CL function has been intrauterine insertion of a glass ball (i.e., marble). However,...

Vanderwall, D. K.; Parkinson, K. C.; Rigas, J.
Elsevier, New York, USA
Journal of Equine Veterinary Science, 2016, 36, pp 1-4