Investigation of the Prevalence of Dicrocolium dendriticum Infection in Sheep and Goat s in Slaughterhouses of Najafabad and Lanjan in Isfahan Province and Evaluation of Its Pathologic Lesions in the Liver

Subject Areas : Journal of Animal Biology

H. Saboktakin ¹ (Department of Parasitilogy, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran)
Y. Pirali ² (Department of Parasitilogy, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran)
E. Moghtadaiee ³ (pathology department .faculty of vet med.islamic azad university .shahrekord branch shahrekord iran .)

Received: 2018-04-03 Accepted : 2018-11-19 Published : 2018-11-22

Keywords: Sheep, liver, slaughterhouse, Dicrocoelium dendriticum,

Abstract :

Dicloleosis is the common disease among ruminants that is caused by different dicrocolemia species. This parasite is observed in the bile duct and gallblader of the ruminants and randomly in humans. The economic and veterinary significance of Dicrocoelium is due to its direct damage to the liver, resulting in the loss of significant amounts of valuable protein substances from human diets due to the elimination of contaminated liver in slaughterhouses. The intermediate hosts of this parasite are earthworms (the first hosts) and ant Formaica (the second host). In order to investigate the prevalence of Dicrocoelium dendriticum infection in sheep and goat in slaughterhouses of Lenjan and Najafabad for four seasons (autumn-winter, spring and summer) of 131521 sheep livers and 19672 goat livers inspected in Najafabad slaughterhouse, 4660 and 193 sheep and goat livers were infected by dicorrosilum parasites. moreover, of 45713 sheep livers and 3726 goat livers inspected in the Lanjan slaughterhouse, 4281 and 72 sheep and goat livers were infected by Dicrocoelium parasite, respectively. A total of 30 infected liver samples were collected for histopathologic studies and then they were examined after lamination and staining with hematoxylin and eosin method. As a result of liver infections, liver tissue destruction, enlarged connective tissue, bile duct hyperplasia, formation of granuloma, liver tissue necrosis, presence of inflammatory cells in tissue and calcification were observed.

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