Ghasemikhah R, Mirhendi H, Kia Eb, Mowlavi Gh, Sarmadian H, Meshgi B, Golestan B, Mobedi I
Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Iran J Parasitol. 2011 Aug;6(3):82-8.
Genus Trichostrongylus (Nematoda: Trichostrongylidae) is one of the most important zoonotic nematodes with wide geographic distribution in the world. The purpose of the present study was to describe morphological and morphometrical characteristics of male Trichostrongylus species, currently prevalent in domestic ruminants of Khuzestan Province, southwest Iran.
Gastro-intestinal organs of 1600 sheep, goats, cattle, and buffalos, slaughtered in Khuzestan Province, southwest Iran, were examined for infectivity with Trichostrongylus species. For examination and measurements of helminthes, Azo-carmine staining was performed, followed by camera lucida drawings of morphological characters and measurements of morphometrical criteria with a calibrated microscope. Using valid nematodes systematic keys, almost all the parasites were identified at the level of species.
Overall, 114 animals were found infected with at least one species of Trichostrongylus. Considering morphological characteristics of male Trichostrongylus, six species were identified including T. colubriformis, T. vitrinus, T. probolorus, T. capricola, T. longispicularis and Trichostrongylus sp.
Although, compared to the previous decades, currently Trichostrongylus is much less prevalent in the domestic ruminants of the study area, but still different species occur in these animals.
毛圆线虫属（线虫纲：毛圆科）是世界上分布广泛且最重要的人畜共患线虫之一。本研究旨在描述目前在伊朗西南部胡齐斯坦省家养反刍动物中流行的雄性毛圆线虫种类的形态学和形态测量学特征。
对在伊朗西南部胡齐斯坦省屠宰的1600只绵羊、山羊、牛和水牛的胃肠器官进行毛圆线虫感染情况检查。为了检查和测量蠕虫，进行偶氮胭脂红染色，然后用显微镜绘图仪绘制形态特征，并使用校准显微镜测量形态测量标准。使用有效的线虫分类检索表，几乎所有寄生虫都鉴定到种的水平。
总体而言，发现114只动物感染了至少一种毛圆线虫。根据雄性毛圆线虫的形态特征，鉴定出6个种类，包括蛇形毛圆线虫、透明毛圆线虫、前翼毛圆线虫、山羊毛圆线虫、长刺毛圆线虫和一种未确定的毛圆线虫。
尽管与过去几十年相比，目前毛圆线虫在研究区域的家养反刍动物中的流行率已大大降低，但这些动物中仍存在不同种类。
