[Effect of immunostimulating agents on the occurrence of puerperal diseases in swine].

Investigations were done on effects of levamisol, chlormetine and biomast Cu. 22 upon the periparturient disease piglets. It was proved that levamisol and chlormetine applied prophylactically in immunostimulative doses at the last period of pregnancy exerted a favourable influence on the health state of sows after delivery. The piglets after sows previously subjected to immunostimulation with levamisol and chlormetine showed higher body mass gains per day, higher body mass on the 28th day after delivery, smaller number of diarrhoeas and death rate. A number of the reared piglets per one sow was also bigger. Preventive application of biomast administered at the end of pregnancy period turned out to be little effective in prophylaxis of periparturient diseases in sows. However, a positive influence of the above mentioned immunostimulation was stated in reference to some health and breeding indices.