Soil pollution with parasite eggs and larvae at fur-bearing animal farms

These investigations were conducted to determine soil parasitologic polluti on at the three farms of fur bearing animals, including fetes, minks and ra coon dogs. The samples were gathered from the following sites: I - between the rows of cages, II - 250 m from the farm boundary, III - 300 m from the farm boundary. The nematode eggs and larvae were searched for in 100 g of s oil utilizing the method of Quinns et al. In all the sites examined eggs of Toxocara canis, Toxascaris leonina and live larvae Ancylostoma caninum and Uncinaria stenocephala were determined. The greatest amount of samples wit h T. canis eggs (95/100 g soil) was confirmed in the soil between the rows of cages. In the distance of 300 m from the farm boundary, at most T. canis I and U. stenocephala eggs occured. In the second experimental year the in vasion extensiveness of the nematodes studied increased slightly and depend ed mainly on animal numbers at a farm as well as the place of investigative material gathering. Through efficacious and regular deworming of the anima ls we should aspire to restrict the environmental pollution with nematode e volutionary forms, because fur bearing animals can be the sourse of non-spe cific invasions.