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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.
Analytic information on coccidia infection in sheep has been presented. The following problems are discussed: the course of clinical and subclinical coccidiosis in lambs; extensiveness and intensity of the particular Eimeria species infection; economic consequences of Eimeria sp. infection in lambs; control of coccidiosis in lambs; effectiveness of coccidiostats on the coccidia infection in lambs - jonophorous preparation and Baycox. Detailed information is given on the anticoccidial activity of Baycox (Bayer), which belongs to the new generation of coccidiostats.
The aim the studies was to establish the usefulness of Baycox for control of coccidiosis and ITS influence on production results (efficiency) in lambs. The studies were carried out on 200 lambs, naturally infected with coccidia, divided in 2 groups -control and experimental, 100 animals in each, after separation from ewes selected in respect of sex, type, date of birth and weight. Toltrazuiril (Baycox) was used the first time for control of sheep coccidiosis in Poland. Toltrazuril was applied individual, twice at 110 and 117 day of life in a doses of 20 mg/kg body weight. The extensity and intensity of coccidia infection was ascertained by the Willis-Schlaaf and McMaster methods. The weight gain of lambs was stated once a month on the basis of individual weight. It was established that toltrazuril show a high efficiency against the protozoa of the genus Eimeria and drug could be used for coccidia control in lambs. This preparation is very active against all intracellular stages - schisogony and gamogony and it could be used for treatment of clinical coccidiosis. It was established profitable influence on the weight gain of lambs.
The study was carried out on material consisting of 3375 rabbits of the White New Zealand breed. The total number of 9 species of coccidia were found, 8 of which were intestinal (E. perforans, E. media, E. magna, E. irresidua, E. coecicola, E. flavescens, E. Piriformis oraz E. intestinalis) and E. stiedai inhabiting the liver. Three specirs - E. irresidua, E. Coecicola and E. flavescens have been found in Poland for the first time. Three of four coccidiostats examined ie. Sacox, Cycostat and Baycox may be used to prevent coccidiosis in rabbit farm. Activity of Vetrocox is less effective and it should not be used in the prevention of coccidia infection. At the age of 90 days the best results were obtained by treatment of Sacox (257 g of increase body weight and 9 per cent lower mortality comparing with the control group ); the second test result was after two doses of Baycox and after Cycostat treatment.
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