EN
Tests were made to show how administration of Uterotonic-Polfa preparation, which contained 50 mg of propranolol in 10 ml of solvent, influenced occurrence of MMA syndrome and the fertility in pigs. It has been proved that application of this preparation after the birth of the first piglet limits occurrence of MMA and decreases the percentage of piglets which die shortly after birth (first 7 days). What is more, applying the preparation has beneficial influence on the fertility of sows and gilts. In percentage terms, the number of females which were rejected because of inability to become pregnant was considerably higher in control groups rather than experimental ones.