Study on the prevalence of lungworm infection in the sheep and got in Boroujerd slaughter house

A slaughterhouse survey was performed for one year during April 2008 and february 2008 in order to determine the prevalence of lungworm infection in both sheep and goat in Boroujerd slaughterhouse, Lorestan province Iran. Sixteen percent of175lungs of sheep and thirteen point fifty seven percent of 140 lungs of goat examined were infected with lungworms and the species found in infected lungs were Cystocaulus ocreatus, Dictyocaulus filarial and protostrongylus rufescens.mixed infections of Dictyocaulus filarial were detected in sheep 78, 57%, Cystocaulus ocreatus 67, 85%, protostrongylus rufescens 64, 25%. Mixed infections Dictyocaulus filarial were detected in goat 68, 42%, Cystocaulus ocreatus 57, 89%, protostrongylus rufescens 63, 25%. With p<.05 and chi suare test was not any statistical difference between sheep and goat but was any statistical difference in the prevalence of lungworm infection according to season. Muellerius capillaris, were not found in sheep and goat lungs but Cystocaulus was seen in worm nodules.