Leal Anangela Ravena da Silva, Freire Simone Mousinho, Knoff Marcelo, Gomes Delir Corrêa, Santos Jeannie Nascimento Dos, Mendonça Ivete Lopes de
Laboratório de Sanidade Animal, Centro de Ciências Agrárias, Universidade Federal do Piauí - UFPI, Teresina, PI, Brasil.
Laboratório de Zoologia e Biologia Parasitária, Universidade Estadual do Piauí - UEPI, Teresina, PI, Brasil.
Rev Bras Parasitol Vet. 2018 Apr-Jun;27(2):146-153. doi: 10.1590/s1984-29612018007. Epub 2018 Mar 1.
Atractis thapari Petter, 1966, an atractid nematode, was collected parasitizing the large intestine of tortoises of the species Chelonoidis carbonarius (Spix, 1824) (Cc) and C. denticulatus (Linnaeus, 1766) (Cd) (Testudinidae) in the Zoobotanical Park of the municipality of Teresina, state of Piauí, Brazil. Taxonomic identification was based on morphological and morphometrical features, and using bright-field and scanning electron microscopy. The present study adds new observations on the morphology of A. thapari, mainly relating to mouth papillae, the excretory pore, deirids, and male and female posterior ends. The parasitic indices of prevalence (P), mean intensity (MI), mean abundance (MA) and range of infection (RI) for A. thapari in these two tortoise species were: P = 100%, MI = 154,667, MA = 154,667, RI = 5,500-588,500 (Cc); P = 100%, MI = 93,639, MA = 93,639, RI = 1,000-224,500 (Cd). This report confirms the occurrence of A. thapari in Neotropical region, South America, Brazil, and extends its occurrences to a new host, the tortoise C. carbonarius. Adjustment of host management with the aim of improving hygiene and health conditions is suggested.
1966年发现的塔帕里白术线虫（Atractis thapari Petter）是一种白术线虫，它寄生在巴西皮奥伊州特雷西纳市动植物园的红腿陆龟（Chelonoidis carbonarius (Spix, 1824)，简称Cc）和黄腿象龟（C. denticulatus (Linnaeus, 1766)，简称Cd）（陆龟科）的大肠内。分类鉴定基于形态学和形态测量学特征，并使用明视野显微镜和扫描电子显微镜。本研究增加了对塔帕里白术线虫形态的新观察结果，主要涉及口乳头、排泄孔、侧器以及雌雄虫后端。这两种陆龟中塔帕里白术线虫的寄生指数，即患病率（P）、平均感染强度（MI）、平均丰度（MA）和感染范围（RI）分别为：Cc：P = 100%，MI = 154,667，MA = 154,667，RI = 5,500 - 588,500；Cd：P = 100%，MI = 93,639，MA = 93,639，RI = 1,000 - 224,500。本报告证实了塔帕里白术线虫在南美洲巴西的新热带地区存在，并将其宿主范围扩展到了新宿主红腿陆龟。建议调整宿主管理措施，以改善卫生和健康状况。
