Direcção de Ciências Animais, Instituto de Investigação Agrária de Mozambique, C.P. 1922, Maputo, Mozambique.
Onderstepoort J Vet Res. 2009 Jun;76(2):201-8. doi: 10.4102/ojvr.v76i2.45.
This study compares the prevalence of ixodid tick species on cattle and goats in Maputo Province. Adult ticks as well as the nymphs of three species, and only the adults of two species were collected from sets of five cattle at 21 localities throughout the province and compared with those collected from similar sets of goats at the same places. Amblyomma hebraeum adults and/or nymphs were present on cattle and on goats at all 21 localities, and 90 cattle and 22 goats were infested with adult ticks. Rhipicephalus (Boophilus) microplus adults and/or nymphs were collected from cattle at 20 and from goats at 15 localities, and 92 cattle and 34 goats were infested [Chi-square test (chi2), P<0.001]. The total length of several maturing female R. (Boophilus) microplus collected from cattle and goats exceeded 5 mm, indicating that they successfully engorge on both host species. Rhipicephalus appendiculatus adults and/or nymphs were present on cattle at 15 and on goats at 13 localities, but 28 cattle and only one goat were infested with adult ticks (chi2, P<0.001). Adult Rhipicephalus evertsi evertsi were recovered from cattle at 20 and from goats at 17 localities, and 74 cattle and 69 goats were infested. Adult Rhipicephalus simus were collected from cattle at 18 and from goats at 11 localities (Fisher's exact test, P=0.04), and 60 cattle and 14 goats were infested (chi2, P<0.001). These findings underscore the advisability of including goats in acaricide application programmes designed for the control of tick-borne diseases in cattle at the same locality.
本研究比较了马普托省牛和山羊上的硬蜱物种流行率。在全省 21 个地点，从五组牛中收集成年蜱以及三种蜱的若虫，仅从两组山羊中收集两种蜱的成虫，并与同一地点类似的两组山羊进行比较。在所有 21 个地点，牛和山羊身上均存在硬蜱属（Hypoderma）的成虫和/或若虫，90 头牛和 22 只山羊被成年蜱寄生。在 20 个牛和 15 个山羊地点采集到璃眼蜱属（Boophilus）微小牛蜱的成虫和/或若虫，92 头牛和 34 只山羊被寄生（卡方检验（chi2），P<0.001）。从牛和山羊身上采集到的几只成熟雌性璃眼蜱属（Boophilus）微小牛蜱的总长度超过 5 毫米，表明它们成功地在两种宿主物种上吸血。在 15 个牛和 13 个山羊地点存在锐缘蜱属（Rhipicephalus）的成虫和/或若虫，但只有 28 头牛和 1 只山羊被寄生（卡方检验（chi2），P<0.001）。在 20 个牛和 17 个山羊地点从牛身上回收了边缘锐缘蜱属（Rhipicephalus）evertsi evertsi 的成虫和/或若虫，74 头牛和 69 只山羊被寄生。在 18 个牛和 11 个山羊地点从牛身上采集到边缘锐缘蜱属（Rhipicephalus）simus 的成虫和/或若虫（Fisher 确切检验，P=0.04），60 头牛和 14 只山羊被寄生（卡方检验（chi2），P<0.001）。这些发现强调了在同一地点为控制牛的蜱传疾病而设计的杀蜱剂应用方案中包括山羊的必要性。
