EN
Three hundred and thirty eight pigs infested with roundworms and scab mites were treated with moxidectin at the dose of 0.3 mg per 1 kg of body weight. The examinations were carried out on 13 farms. The drug was effective against scabies mites, Strongyloides ransomi, Oesophagostomum dentatum, Trichuris suis, and effectively limited the intensity and extensiveness of Ascaris suum invasion. The rearing conditions did not influence the effectiveness of roundworm elimination in the treated pigs. In case of Sarcoptes scabiei var. suis reinvasions were observed at 56 days after the therapy only on the farms where the animals were reared in closed cycles.