Hashemnia Mohammad, Shahbazi Yasser, Frajani Kish Ghasem
Department of Pathobiology, School of Veterinary Medicine, Razi University, P.O. Box: 67156-85414, Kermanshah, Iran.
Department of Food Hygiene and Quality Control, School of Veterinary Medicine, Razi University, Kermanshah, Iran.
J Parasit Dis. 2016 Dec;40(4):1575-1578. doi: 10.1007/s12639-015-0732-7. Epub 2016 Jan 12.
, the intermediate stage of a canine tapeworm, , produces cystic lesions in the skeletal and cardiac muscle of sheep which, if numerous, will result in the condemnation of an entire carcass. This study was carried out between March 2013 and March 2014 to estimate the prevalence of in sheep slaughtered at the Kermanshah municipal abattoir, in western Iran. Of 69,198 sheep examined, 833 (1.27 %) were infected with cysticerci of The prevalence of was significantly higher in males than females ( < 0.05). Seasonal analysis revealed significantly higher prevalence in spring (1.8 %) than other seasons ( < 0.005). The heart muscles (29.7 %), diaphragm (18.8 %), masseter muscles (18.2 %) and tongue (15.5 %) were the main predilection sites of the cysts. The cysts of were also identified on the triceps, intercostal muscles, thigh muscles, intestinal mucosa, liver and Spleen. This parasite caused extensive damage resulting in infiltrative, degenerative changes, necrosis and exudation mainly in the vicinity of cysts. The results indicate that the prevalence of in this area is high. Therefore improving the standard of disease prevention and control on farms is necessary.
犬绦虫的中间阶段，即细颈囊尾蚴，会在绵羊的骨骼肌和心肌中产生囊性病变，如果数量众多，将导致整个胴体被拒收。本研究于2013年3月至2014年3月进行，旨在估计伊朗西部克尔曼沙赫市屠宰场宰杀的绵羊中细颈囊尾蚴的感染率。在检查的69198只绵羊中，833只（1.27%）感染了细颈囊尾蚴。细颈囊尾蚴的感染率在雄性绵羊中显著高于雌性（P<0.05）。季节性分析显示，春季的感染率（1.8%）显著高于其他季节（P<0.005）。心肌（29.7%）、膈肌（18.8%）、咬肌（18.2%）和舌（15.5%）是囊肿的主要偏好部位。在肱三头肌、肋间肌、大腿肌、肠黏膜、肝脏和脾脏上也发现了细颈囊尾蚴的囊肿。这种寄生虫造成了广泛的损害，主要在囊肿附近导致浸润性、退行性变化、坏死和渗出。结果表明，该地区细颈囊尾蚴的感染率很高。因此，有必要提高农场疾病预防和控制的标准。
