Endoparasites in domestic animals surrounding an Atlantic Forest remnant, in São Paulo State, Brazil

Abstract Morro do Diabo State Park (MDSP) is a significant remnant of the Atlantic Rain Forest in Brazil and is surrounded by rural properties. In that area, wild and domestic animals and humans are in close contact, which facilitates the two-way flow of infectious diseases among them. We assessed endoparasites in domestic livestock from all rural properties surrounding MDSP. There were sampled 197 cattle, 37 horses, 11 sheep, 25 swine, 21 dogs, one cat and 62 groups of chickens from 10 large private properties and 75 rural settlements. Eimeria spp. was present in almost all hosts, excepted in horses, dogs and cats. Giardia cysts were present only in cattle. Nematodes were found in swine, ruminants and horses in high prevalence. Ancylostoma, Toxocara and Sarcocystis were found in dogs. Chickens were found with coccidia, Ascaridida and Capillaria spp.. These parasites can cause malnutrition and reproductive disorders for their hosts. Strategies to prevent and control the spread of endoparasites can improve wildlife, animal and human health in this area.

摘要：莫罗迪阿博州立公园（Morro do Diabo State Park, MDSP）是巴西大西洋雨林的重要残存片段，周边环绕各类乡村农牧用地。该区域内野生动物、家畜与人类接触频繁，为传染病的双向跨宿主传播创造了有利条件。
本研究对MDSP周边所有农牧场的家畜开展体内寄生虫普查。共从10处大型私有牧场及75个乡村定居点采集样本：197头肉牛、37匹马、11只绵羊、25头生猪、21只犬、1只家猫，以及62组鸡群。
检测结果显示：除马、犬和猫外，其余所有宿主均检出艾美耳属（Eimeria spp.）寄生虫；贾第虫包囊仅在牛群中检出；线虫在生猪、反刍动物及马群中呈现高感染率；犬体内检出钩口线虫属（Ancylostoma）、弓首线虫属（Toxocara）与肉孢子虫属（Sarcocystis）；鸡群则检出球虫、蛔形目（Ascaridida）线虫及毛细线虫属（Capillaria spp.）。
上述寄生虫可引发宿主营养不良与生殖机能紊乱。针对该区域的体内寄生虫传播制定防控策略，有助于提升野生动物、家畜及人类的整体健康水平。