Harper C K, Penzhorn B L
Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa.
Vet Parasitol. 1999 Mar 22;82(1):1-9. doi: 10.1016/s0304-4017(98)00266-0.
Occurrence and diversity of Eimeria species in two groups of indigenous South African goats kept under traditional management systems, as well as in a mixed herd of Saanen, indigenous and crossbred goats kept under an intensive management system were examined. Infection rates ranged from 88.7 to 100% in the various groups. Mean OPG of immature goats (< 1 year old) exceeded that of adult goats at all three sites. There was no consistent difference between adult OPG counts at the three sites. Under the intensive system, adult crossbred goats had significantly higher OPG counts than adult Saanen or indigenous goats. Overall, OPG counts of immature goats were significantly higher during the dry season (winter) than during the wet season (summer). Ten Eimeria species were identified, Eimeria arloingi being the most prevalent species at all three sites, followed by Eimeria hirci. Up to seven Eimeria species were recovered from individual specimens.
对两组采用传统管理系统饲养的南非本土山羊，以及一组采用集约化管理系统饲养的萨能山羊、本土山羊和杂交山羊混群中的艾美耳球虫种类的发生情况和多样性进行了研究。各群体的感染率在88.7%至100%之间。在所有三个地点，未成熟山羊（<1岁）的平均每克粪便卵囊数均超过成年山羊。三个地点成年山羊的每克粪便卵囊数没有一致的差异。在集约化系统下，成年杂交山羊的每克粪便卵囊数显著高于成年萨能山羊或本土山羊。总体而言，未成熟山羊的每克粪便卵囊数在旱季（冬季）显著高于雨季（夏季）。鉴定出了10种艾美耳球虫，阿氏艾美耳球虫是所有三个地点最常见的种类，其次是山羊艾美耳球虫。从单个样本中最多可检出7种艾美耳球虫。
