| an undescribed rhipicephalus species associated with field paralysis of angora goats. | paralysis of angora goat kids caused by adult ticks, which most probably belong to an undescribed species of the rhipicephalus pravus group, is described. confirmed cases of paralysis occurred in the south-western orange free state between the second half of september and the first half of november as well as during the first half of february. the mean female tick burdens (mean = 21.4) of paralysed angora kids were significantly higher than those of healthy kids (mean = 4.4). the predilection at ... | 1988 | 3361560 |
| a study of the justification for intensive tick control in kenyan rangelands. | sixty male weaner cattle at the national range research station, kiboko, kenya were placed in four groups of 15 animals under four different tick control regimens for 16 months. the treatment groups were: spraying with acaricide weekly, spraying every three weeks, spraying whenever group mean tick infestations reached more than 200 per animal (once only in the course of the study) and a control unsprayed group. the cattle were weighed monthly. there were no significant differences between the li ... | 1986 | 3798681 |
| virus isolations from ixodid ticks in uganda. ii. kadam virus--a new member of arbovirus group b isolated from rhipicephalus pravus dontiz. | | 1970 | 5473597 |
| clarification of the status of rhipicephalus kochi dönitz, 1905 (ixodoidea, ixodidae). | figures of the types of rhipicephalus kochi, and of its synonym rhipicephalus neavei warburton, 1912, are presented. these are accompanied by complete descriptions of all stages of r. kochi, illustrated with scanning electron microscope photographs. the basic differences between this species, rhipicephalus pravus dönitz, 1910 and rhipicephalus punctatus warburton, 1912 are outlined. r. kochi occurs south of the equator in parts of eastern, central and southern africa. its adults feed most common ... | 1983 | 6877798 |
| contribution to the knowledge of ixodidae ticks of wild mammals of somalia. | this study was based on material collected in 1983-1984 from wild mammals of the middle scebeli. low scebeli and bay regions of somalia. a total of 292 specimens (156 males, 65 females, 70 nymphase, 1 larva) from 13 host species were examined. the following species of ixodidae were identified. amblyomma variegatum (fabricius, 1794); haemaphysalis calcarata neumann, 1902; haemaphysalis spinulosa neumann, 1906; rhipicephalus armatus pocock, 1900; rhipicephalus pravus donitz, 1910; rhipicephalus pu ... | 1996 | 9257347 |
| tick infestation of borana cattle in the borana province of ethiopia. | a study was conducted to identify and determine burdens of ticks infesting borana cattle in the borana province of ethiopia. rhipicephalus pulchellus, rhipicephalus pravus, rhipicephalus muhsamae, rhipicephalus praetextatus, rhipicephalus evertsi evertsi, amblyomma gemma, amblyomma variegatum, amblyomma cohaerens, amblyomma lepidum, hyalomma truncatum, hyalomma marginatum rufipes and boophilus decoloratus were identified on the cattle. their burdens ranged from 658-1,554 with a mean of 1,205 tic ... | 2001 | 11403429 |
| dermatophilus congolensis infection in goats in tanzania. | when goats in eastern tanzania were screened for skin diseases, dermatophilus congolensis was isolated from the skin lesions in 8 of 484 animals examined. in one severely affected case, the disease was also characterized by histological studies (gram stain, giemsa stain and routine he studies) and electron microscopy. the histological picture was characterized by hyperkeratosis, parakeratosis, acanthosis, folliculitis and an inflammatory cellular reaction involving the epidermis. gram stain and ... | 2001 | 11556616 |
| rhipicephalus pravus dönitz, 1910. | | 1956 | 13378879 |
| elephant shrews as hosts of immature ixodid ticks. | two hundred and seventy-three elephant shrews, consisting of 193 elephantulus myurus, 67 elephantulus edwardii and 13 animals belonging to other species, were examined for ixodid ticks at 18 localities in south africa and namibia. the immature stages of ixodes rubicundus, rhipicentor nuttalli, rhipicephalus warburtoni and a rhipicephalus pravus-like tick were the most numerous of the 18 tick species recovered. substantial numbers of immature rhipicephalus arnoldi, rhipicephalus distinctus and rh ... | 2005 | 16562732 |
| ticks (acari: ixodidae) associated with wildlife and vegetation of haller park along the kenyan coastline. | this artcile describes the results obtained from a tick survey conducted in haller park along the kenyan coastline. the survey aimed at evaluating tick-host associations, assessing tick population density, and providing baseline information for planning future tick control and management in the park. ticks (2,968) were collected by handpicking from eight species of wildlife and by dragging in 14 selected sites within the park. a considerable proportion of ticks were also collected from leaves, s ... | 2006 | 17017210 |
| ticks associated with the three largest wild ruminant species in southern africa. | the objective of this study was to assess the host status of the three largest southern african wild ruminants, namely giraffes, giraffa camelopardalis, african buffaloes, syncerus caffer, and eland, taurotragus oryx for ixodid ticks. to this end recently acquired unpublished data are added here to already published findings on the tick burdens of these animals, and the total numbers and species of ticks recorded on 12 giraffes, 18 buffaloes and 36 eland are summarized and discussed. twenty-eigh ... | 2007 | 17933365 |
| ticks (acari: ixodidae) infesting cattle and african buffaloes in the tsavo conservation area, kenya. | several ixodid tick species are shared between domestic cattle and african buffaloes (syncerus caffer). so too, are a number of tick-borne diseases. the aim of the study was to compare the species composition of ticks that infest cattle and buffaloes utilising the same habitat within the tsavo conservation area, kenya. to this end, 25 cattle and 62 buffaloes were each opportunistically sampled for ticks on a single occasion in february 2010. eight species, namely amblyomma gemma, amblyomma lepid ... | 2012 | 23327329 |
| ectoparasites of sheep in three agro-ecological zones in central oromia, ethiopia. | a cross-sectional study was conducted to determine the prevalence and risk factors for ectoparasites infestation in sheep in three agro-ecological zones in central oromia, ethiopia, from october 2009 to april 2010. the study revealed that 637 (48.1%) of the 1325 sheep examined were infested with one or more ectoparasites. the ectoparasites identified were bovicola ovis (27.2%), melophagus ovinus (16.4%), ctenocephalides sp. (2.3%), linognathus africanus (1.2%), linognathus ovillus (0.3%), sarcop ... | 2012 | 23327319 |
| revisiting the clinal concept of evolution and dispersal for the tick-borne flaviviruses by using phylogenetic and biogeographic analyses. | tick-borne flaviviruses (tbf) are widely dispersed across africa, europe, asia, oceania, and north america, and some present a significant threat to human health. seminal studies on tick-borne encephalitis viruses (tbev), based on partial envelope gene sequences, predicted a westward clinal pattern of evolution and dispersal across northern eurasia, terminating in the british isles. we tested this hypothesis using all available full-length open reading frame (orf) tbf sequences. phylogenetic ana ... | 2012 | 22674986 |
| isolation of tick and mosquito-borne arboviruses from ticks sampled from livestock and wild animal hosts in ijara district, kenya. | tick-borne viruses infect humans through the bite of infected ticks during opportunistic feeding or through crushing of ticks by hand and, in some instances, through contact with infected viremic animals. the ijara district, an arid to semiarid region in northern kenya, is home to a pastoralist community for whom livestock keeping is a way of life. part of the ijara district lies within the boundaries of a kenya wildlife service-protected conservation area. arbovirus activity among mosquitoes, a ... | 2013 | 23805790 |
| occurrence of ticks in cattle in the new pastoral farming areas in rufiji district, tanzania. | ticks and tick-borne diseases plus trypanosomosis are a constraint to cattle rearing in tanzania. rufiji district was not known for important ticks infesting cattle because inhabitants were not engaged in keeping livestock. not only has settlement of pastoralists and cattle in rufiji increased the number of cattle but also cattle have been the source of bringing in and spreading of ticks. this study investigated tick species that have been introduced and managed to establish themselves in the ne ... | 2016 | 27990463 |