EN
The observations were done on 800 rabbits, White New Zealand, in two experimental groups consisting of 400 animals each. Salinomycin as a food additive was used during fattening (35—90 days of life) at a dose of 20 ppm. Coprological examinations by the method of Willis-Schlaaf and McMaster were done three times: at day 35, 63 and 89, 90 of life. The weight of rabbits was determined before and after the experiment. Consumption of food was also calculated. At day 90 in each group weight of liver in 120 rabbits was determined. Totally 9 species of Eimeria were found including 8 species parasitizing in the alimentary canal and one in the liver. Salinomycin at a dose of 20 ppm appeared to be very effective coccidiostatic protecting fully rabbits against coccidiosis. Using salinomycin a significant economical effects were noted: increase of body weight by 226 g/animal, decrease of food intake by 0,3 kg/animal, decrease of death rate by 5,18°/o comparing to a control group.