Hlatshwayo M, Mbati P A, Dipeolu O O
Parasitology Research Programme, University of the North, Phuthaditjhaba, South Africa.
Onderstepoort J Vet Res. 2002 Mar;69(1):1-6.
A study was undertaken to determine the seasonal abundance of the ticks infesting cattle owned by resource-limited farmers in the north-eastern Free State Province of South Africa. Infestations of Boophilus decoloratus Koch, 1844, Rhipicephalus evertsi evertsi Neumann, 1897, Rhipicephalus follis Donitz, 1910, Rhipicephalus gertrudae Feldman-Muhsam, 1960 and Rhipicephalus warburtoni Walker & Horak, 2000, were monitored on cattle of mixed breeds at monthly intervals from May 1998 to April 1999. High tick intensity on the cattle was observed between March and June, with a peak in May to June 1998 for B. decoloratus and R. evertsi evertsi. Few ticks from the other three species were recovered from the cattle. Small peaks in November to December 1998 for R. warburtoni, and in December 1998 for R. follis and R. gertrudae were observed. Following the winter (June to August), numbers of B. decoloratus declined markedly, while those of R. evertsi evertsi and other rhipicephalids increased. These results represent the first published information on ticks of veterinary importance infesting cattle in the north-eastern part of the Free State Province.
开展了一项研究,以确定南非自由邦省东北部资源有限的农民所养牛身上蜱虫的季节性丰度。于1998年5月至1999年4月期间,每月对混种牛身上的1844年的无色牛蜱(Boophilus decoloratus Koch)、1897年的埃氏扇头蜱指名亚种(Rhipicephalus evertsi evertsi Neumann)、1910年的弗氏扇头蜱(Rhipicephalus follis Donitz)、1960年的格氏扇头蜱(Rhipicephalus gertrudae Feldman-Muhsam)和2000年的沃氏扇头蜱(Rhipicephalus warburtoni Walker & Horak)感染情况进行监测。在3月至6月期间观察到牛身上蜱虫密度较高,1998年5月至6月无色牛蜱和埃氏扇头蜱指名亚种出现峰值。从牛身上采集到的其他三种蜱虫数量很少。观察到1998年11月至12月沃氏扇头蜱出现小峰值,1998年1月弗氏扇头蜱和格氏扇头蜱出现小峰值。冬季(6月至8月)过后,无色牛蜱数量显著下降,而埃氏扇头蜱指名亚种和其他扇头蜱数量增加。这些结果是关于自由邦省东北部感染牛的具有兽医重要性的蜱虫的首次公开信息。