Internal parasites in Lowland-black-and-white and Red-Polish cattle

Coproscopical examinations were conducted in August 1999 and in July 2000 i n a dairy cattle herd composed of 29-30 cows of lowland-black-and-white and 43-51 of Red-Polish breed. In 1999, 10.34% Lowland-black-and-white cows we re infected by gastrointestinal nematodes, 3.44% by Moniezia spp, tapeworm and 13.8% by Eimeria spp, coccidias, 4.65% Red-Polish cattle were stricken with gastrointestinal nematodes and 2.32% with coccidias, In 2000 about 47% Lowland-black-and-white cows were infected by nematodes and 10% by coccidi as, 7.84% Red-Polish cows were affected with gastrointestinal nematode and Eimeria spp, (1.96%) invasions, The intensity of gastrointestinal nematode invasion in cows in both groups was 200 eggs per one gram of excrement and 100-200 oocysts of coccidias per one gram of excrement in Lowland-black-and -white and about 100 oocysts in Red-Polish cattle, Ascertaining the differences in the extent and intensity of gastrointestina l nematodes, tapeworms and coccidias invasions indicate the greater resista nce of Red-Polish cows than Lowland-black-and-white cattle to parasite inva sions.