Rassouli Maryam, Ahmadpanahi Javad, Alvandi Ayda
Pathobiology Department of Shahmirzad School of Veterinary Medicine, Semnan University, Vali Asr area, Shahmidzad, Semnan, 35718-95589, Iran,
Parasitol Res. 2014 Oct;113(10):3801-5. doi: 10.1007/s00436-014-4047-x. Epub 2014 Aug 2.
Sarcocystis and Hammondia are two obligatory protozoan parasites. These genera belong to cyst-forming coccidia group of the phylum Apicomplexa. They both need two different hosts to complete their life cycles. Felids and canids can act as definitive hosts, while herbivores, such as sheep and cattle, are the most important intermediate hosts. Reports verify that no important disease has been caused by Hammondia spp.; on the other hand, Sarcocystis spp. can cause some severe infectious disease in livestock industry such as abortion. Economic losses are another concern due to carcass condemnation during meat inspection in abattoirs and decrease in the quality and quantity of milk and wool production. Due to the Sarcocystis and Hammondia tissue cysts being similar, the distinction between these different genera is so important. In this study, the prevalence of Sarcocystis and Hammondia in the esophagus tissue of sheep and cattle slaughtered in one of the industrial abattoir in Iran was reported and an easy and rapid method for accurate diagnosing of Sarcocystis and Hammondia bradyzoites was explained.
肉孢子虫属和哈蒙德球虫属是两种专性原生动物寄生虫。这些属属于顶复门的形成包囊的球虫类群。它们都需要两个不同的宿主来完成其生命周期。猫科动物和犬科动物可作为终末宿主，而草食动物，如绵羊和牛，则是最重要的中间宿主。报告证实，哈蒙德球虫属未引发任何重大疾病；另一方面，肉孢子虫属可在畜牧业中引发一些严重的传染病，如流产。由于屠宰场肉类检查期间胴体被判不合格以及牛奶和羊毛产量的质量和数量下降，经济损失是另一个令人担忧的问题。由于肉孢子虫属和哈蒙德球虫属的组织包囊相似，区分这些不同的属非常重要。在本研究中，报告了伊朗一家工业屠宰场宰杀的绵羊和牛食管组织中肉孢子虫属和哈蒙德球虫属的流行情况，并解释了一种准确诊断肉孢子虫属和哈蒙德球虫属缓殖子的简便快速方法。
