Bovine cysticercosis in feedlot cattle in central region of Iran
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The cestode, Taenia saginata is a zoonotic tapeworm that it’s larval stage which known as Cysticercus bovis cause cyst formation in cattle’s organs such as heart, lung, liver, tongue, esophagus and diaphragm muscle, despite the infected cattle may show no clinical signs. Antemortem diagnosis of bovine cysticercosis can be made by antigen detecting ELISA. In a feedlot near city of Arak, beef cattle had different degrees of lethargy, dullness, unthriftiness and were reluctant to move. In postmortem examination of cattle, samples were collected from heart tissue and stained by H&E method for light microscopic examination. 10 ml of blood samples were taken from jugular veins of 90 cattle that were going to be sent to slaughterhouse. Serums obtained from blood samples were investigated for presence of C. bovis antigen by ELISA assay. Soils and dusts from farm yard, pen’s floor, feed store and both toilets of workers and employer were sampled and evaluated for presence of parasite eggs by floating method. Cysticercus bovis antigen were identified in serums of 18 cattle; and also, samples from workers toilet was contaminated by eggs of T. saginata. This study showed that serologic methods in conjunction with meat inspection can be used for diagnosis of bovine cysticercosis. The aim of this study is to identify infected cattle with C. bovis by serologic methods before slaughter and determine microscopic characteristics of lesions on postmortem examination in central area of Iran.
KeywordsCysticercus bovis Antigen detecting ELISA Meat inspection Iran
Naser Gholami and Hamed Rasmi Atigh: act as farm veterinarian and sampling from cattle on the herd. Mahdi Mosayebi: acts as parasitologist; examination of fecal sample for presence of eggs of Taenia saginata and also performer of ELISA assay. Peyman Dehghan Rahim Abadi: acts as farm veterinarian, corresponding author, coordinator between researchers in the group and data collector. Reza Sedaghat: acts as veterinary pathologist, examination of tissue specimens. Mohammad Hassan Naji Zadeh: acts as reviewer of literature, contributor in article writing and following up cattle in abattoir and sampling. Majid Farahani: acts as senior veterinary student and sampling of cattle in abattoir.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
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