国家肉羊产业技术体系 - 伊朗西部的屠宰绵羊羊囊虫病的患病率与病理性病变

伊朗西部的屠宰绵羊羊囊虫病的患病率与病理性病变

编辑：符琳琳 2016-12-10

羊囊尾蚴，是羊绦虫发育的中间阶段，绵羊骨骼肌和心肌中产生的囊性病变，如果恶化，将导致整个胴体的溃烂。本研究是在2013年3月至2014年3月之间进行，评估伊朗西部克尔曼沙赫市屠宰场的屠宰绵羊的羊绦虫囊尾蚴的患病率。检测了69198头绵羊，其中833（1.27%）感染羊绦虫囊尾蚴。雄性羊绦虫囊尾蚴的患病率显著高于雌性（P＜0.05）。季节性分析显示，春季（1.8%）的患病率明显高于其他季节（P＜0.005）。心肌（29.7%）、隔膜（18.8%），咬肌（18.2%）、舌（15.5%）是囊肿主要的易发部位。肱三头肌，肋间肌肉、大腿肌肉、肠、肝和脾中也发现了羊绦虫囊尾蚴引起的囊肿。这种寄生虫造成了严重的损坏，导致主要在囊肿附近发生浸润性、退行性改变，坏死和渗出物。结果表明，本地区绵羊羊绦虫囊尾蚴的患病率很高。因此，提高农场的疾病预防和控制的标准是非常必要的。

原文摘要如下：

Prevalence and pathological lesions of ovine cysticercosis in slaughtered sheep in western Iran

Hashemnia M¹, Shahbazi Y², Frajani Kish G³

Abstract: Cysticercusovis, the intermediate stage of a canine tapeworm, Taenia ovis, 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 Taenia oviscysticercosis in sheep slaughtered at the Kermanshah municipal abattoir, in western Iran. Of 69,198 sheep examined, 833 (1.27%) were infected with cysticerci of Taenia ovis. The prevalence of C. ovis was significantly higher in males than females (P<0.05). Seasonal analysis revealed significantly higher prevalence in spring (1.8%) than other seasons (P<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 ovinecysticercosis 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 C. ovis in this area is high. Therefore improving the standard of disease prevention and control on farms is necessary.

Keywords: Cysticercusovis, Iran, Kermanshah, Pathology, Prevalence

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