This study identifies gastrointestinal parasites in the feces of Pecari tajacu (caititu) and Sus scrofa domesticus (domestic pig) in southeastern Piauí, Brazil. The region covers 2 protected areas, Serra da Capivara National Park and Serra das Confusões National Park, and surrounding communities. Fecal samples from 64 animals, 42 from domestic swine and 22 from caititu, collected between 1985 and 2013, were analyzed by optical microscopy. Helminths and/or protozoa were found in 64% of the domestic pig samples and 27% of the caititu samples, totaling 18 morphospecies: Nematoda, Spirurida (2 morphospecies), Trichostrongyloidea, Eimeriidae, Aspidodera sp., Bertiella sp., Metastrongylus sp., Trichostrongylus sp., Moniezia sp., Gongylonema sp., Trichuris suis, Spirocerca lupi, Macracanthorhyncus hirudinaceus, Globocephalus urosubulatus, Strongyloides cf ransomi, Balantioides coli, and Eimeria cf scabra. The highest parasite diversity was obtained in the pig samples, totaling 15 morphospecies, compared to only 6 in caititus, with S. cf ransomi, G. urosubulatus, and S. lupi present in both hosts. We discuss the presence of parasites associated with domestic animals around the Protected Areas and potentially zoonotic parasites close to human communities, which raise concerns about the conservation of wildlife, human health, and livestock in the region.

这项研究在巴西皮奥伊东南部的Pecari tajacu (caititu) 和Sus scrofa Domesticus (家猪)的粪便中发现了胃肠道寄生虫。该地区涵盖 2 个保护区：卡皮瓦拉山国家公园 (Serra da Capivara National Park) 和孔夫索斯山国家公园 (Serra das Confusões National Park) 以及周边社区。通过光学显微镜对 1985 年至 2013 年间收集的 64 只动物（其中 42 份来自家猪，22 份来自 caititu）的粪便样本进行了分析。64% 的家猪样本和 27% 的 caititu 样本中发现了蠕虫和/或原生动物，总共 18 个形态种：线虫纲、螺旋纲（2 个形态种）、毛圆线虫科、艾美耳科、蜘蛛螨属、伯蒂氏菌属、后圆线虫属。 、毛圆线虫属、莫尼齐亚属、弓线虫属、猪毛线虫、狼尾丝虫、水蛭Macracanthorhyncus hirudinaceus、Globocephalus urosubulatus、兰索类圆线虫、大肠杆菌和艾美耳球虫。猪样本中的寄生虫多样性最高，共有 15 种形态种，而 caititus 中只有 6 种，其中包括S . cf ransomi、G. urosubulatus和S. lupi均存在于两个宿主中。我们讨论了保护区周围与家畜有关的寄生虫以及靠近人类社区的潜在人畜共患寄生虫的存在，这引起了人们对该地区野生动物、人类健康和牲畜保护的担忧。