EN
The aim of the research was to establish the usefulness of Sacox and Baycox coccidiostatics for control of coccidiosis and their influence on the breeding of lambs. The research was carried out on 600 lambs, naturally infected with coccidia and divided into 3 groups - 200 animals in each, after separation from ewes and selected in terms of sex, type, date of birth and weight. Research on the influence of coccidiostatics on the duration of coccidiosis and on the breeding sheep were conducted. The research group consisted of 600 lambs (3 groups). Two coccidiostatics were used - salinomycin (Sacox, Hoechst) and toltrazuril (Baycox, Bayer). Baycox was used for the first time to control sheep coccidiosis in Poland. Salinomycin was administered as a feed additive in a dose of 40 ppm; however, toltrazuril was applied individually - twice on the 110 and 117 day of life in doses of 20 mg/kg body weight. The extent and intensity of coccidia infection was ascertained by the Willis-Schlaaf and McMaster methods. The weight gain of lambs was determined once a month on the basis of individual weight. The results of the research verify that salinomycin and toltrazuril are highly efficient in protecting against the protozoa of the genus Eimeria and these two drugs could be used for coccidia control in lambs. Special attention was paid to toltrazuril; this preparation is very active against all intracellular stages - schisogony and gamogony and it in turn could be used for treatment of clinical coccidiosis. Both coccidiostatics have a positive influence on the weight gain of lambs.