چكيده لاتين :
To determine the type and economic impact of ruminants parasitic contamination in miyaneh industrial slaughter house 1243 sheep and goat and 529 cow were studied. The experiment was a Cross-sectional study and statistical analysis was descriptive study. While slaughtering survive of the slaughtered animalʹs body, samples were taken from liver and lung and then parasitic infestations were seprated from the samples. After fixation of the samples in 10 % formalin, identification was performed based on parasitological characteristics. In parasitological study of 1243 sheep and goat: liverʹs contamination level to Fasciola 15.28 %, Dicrocoelium dendritictm 7.24%, hydatid cyst 7.26%, Cysticercus teniocolis 2.89% and lung hydatidosis 11.02% was determined. In parasitological study of 529 cow: liverʹs contamination level to Fasciola 24.3 %, Dicrocoelium dendritictm 5.1%, hydatid cyst 1.89% In general this research showes the level of contaminaton and variety of parasitic infestation in ruminants due to importance of hygienic and economic, eradication with parasites and their intermediate hosts is very crucial in this region. Vet.J.of Islamic.Azad. Univ., Garmsar Branch.4,1:29-32,2008.