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Updated: Aug 18, 2026

Testing the Efficacy of Pharmacological Agents in a Pericardial Target Delivery Model in the Swine
Published on: July 7, 2016
The effect of administration of a beta blocker in periparturient mares
J Ingarden1, A Dubiel, S Rauluszkiewicz
1Department of Animal Reproduction, Faculty of Veterinary Medicine, Agricultural University, Wroclaw, Poland.
Abstract:
This study investigated the effect of a beta blocker on parturition, fetal membrane retention and subsequent fertility in mares. The animals were divided into an experimental group (150 mares treated during second stage labour with propranolol [50 mg i.v.]) and a control group (180 mares with no treatment). Administration of propranolol was associated with a significant decrease in time of expulsion of fetal membranes, and an increase in both exhibition of foal heat and pregnancy rates at this heat.
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