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Prevalence of thin-walled Sarcocystis cruzi and thick-walled Sarcocystis hirsuta or Sarcocystis hominis from cattle in Iran

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Abstract

Bovine sarcocystosis is caused by Sarcocystis cruzi and is known to cause considerable morbidity and mortality in cattle. This species is distributed worldwide in cattle and is the most prevalent of the Sarcocystis species infecting cattle. There is high infection rate of sarcocyst in cattle in Iran, but to our knowledge, there is no study about identification of Sarcocystis species. This work aimed to survey prevalence of S. cruzi cyst in slaughtered cattle of Isfahan, Iran. In this study, esophageal and diaphragmatic muscles of 100 cattle were collected from Fesaran abattoir of Isfahan and examined for the presence of Sarcocystis spp. cysts macroscopically and microscopically. No macroscopic sarcocysts were found in any of the samples. In light microscopy, 89 out of 100 cattle (89%) had thin-walled cysts of S. cruzi, while 21 out of them (21%) had thick-walled sarcocysts. In addition to light microscopy, ultrastructural features of the thin-walled cyst confirmed the presence of S. cruzi.

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Acknowledgements

This study was supported by the Shahrekord University, Shahrekord, Iran. The authors are grateful to Mr. Ahmadi for his technical support. We also thank the officials of Fesaran abattoir of Isfahan and Razi Vaccine and Serum Research Institute, Karadj, Iran, for their helpful assistance.

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Correspondence to Hossein Nourani.

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Nourani, H., Matin, S., Nouri, A. et al. Prevalence of thin-walled Sarcocystis cruzi and thick-walled Sarcocystis hirsuta or Sarcocystis hominis from cattle in Iran. Trop Anim Health Prod 42, 1225–1227 (2010). https://doi.org/10.1007/s11250-010-9552-z

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