Penzhorn B L, Knapp S E, Speer C A
Montana State University, Bozeman 59717.
J Wildl Dis. 1994 Apr;30(2):267-9. doi: 10.7589/0090-3558-30.2.267.
Four Eimeria species have been reported from American bison (Bison bison): E. auburnensis, E. bovis, E. brasiliensis, and E. canadensis. We report on finding two additional species: E. ellipsoidalis and E. zuernii. In 1993, the prevalence of these six species in 31 yearling bison in a recently-established herd on private ranchland in Montana (USA) was: E. bovis, 97%; E. canadensis, 90%; E. zuernii, 32%; E. ellipsoidalis, 32%; E. auburnensis, 9.7%; and E. brasiliensis, 3.2%. Eimerian oocysts also were recovered from five (14%) of 36 bison in 1993 from West Yellowstone; the species involved were: E. canadensis, E. bovis, E. zuernii and E. auburnensis.
据报道，美洲野牛（Bison bison）体内存在四种艾美耳球虫：奥本艾美耳球虫（E. auburnensis）、牛艾美耳球虫（E. bovis）、巴西艾美耳球虫（E. brasiliensis）和加拿大艾美耳球虫（E. canadensis）。我们报告发现了另外两种：椭圆艾美耳球虫（E. ellipsoidalis）和邱氏艾美耳球虫（E. zuernii）。1993年，在美国蒙大拿州一处私人牧场新组建的牛群中，31头一岁野牛体内这六种球虫的感染率分别为：牛艾美耳球虫，97%；加拿大艾美耳球虫，90%；邱氏艾美耳球虫，32%；椭圆艾美耳球虫，32%；奥本艾美耳球虫，9.7%；巴西艾美耳球虫，3.2%。1993年，从西黄石公园的36头野牛中，也有5头（14%）检测出艾美耳球虫卵囊；涉及的球虫种类有：加拿大艾美耳球虫、牛艾美耳球虫、邱氏艾美耳球虫和奥本艾美耳球虫。
