نتایج جستجو برای: rhipicephalus
تعداد نتایج: 1698 فیلتر نتایج به سال:
Background: Ticks are of great importance in transmission various canine tick borne diseases. Several characteristics ticks make them outstanding vectors pathogenic agents, the wide host range and slow feeding habit along with tendency to feed on several hosts during life cycle ensures ample opportunity acquire transmit pathogens. Methods: This study focuses status molecular detection haemopara...
background:ticks are obligatory blood sucking arthropodsthat can transmit important pathogens. objectives: thedistribution and diversity of ticks fauna were last studied in the northof iran in 2007. mazandaran province has a humid climate, whichis favourable to animal husbandry such as sheep breeding. due tohumid climate, the likelihood of exposure to tick infestation isincreasing. the aim of t...
This tick, originally referred to as Rhipicephalus species III by Yeoman & Walker (1967), was first collected from a sitatunga, Tragelaphus spekei, and then occasionally from cattle, in Tanzania. Further collections, mostly from sitatunga, have since been seen from Uganda and Zambia. Descriptions of the adults of this species are given, together with information on their hosts and their distrib...
Dermacentor nuttallii from Siberia, Rhipicephalus sanguineus from Crimea, and Rh. pumilio from the Astrakhan region were infected with Rickettsia sibirica (12%), R. conorii (8%), and the Astrakhan fever agent (3%), respectively. Three new Rickettsiae of the R. massiliae genogroup were identified in ticks by 16S rDNA, gltA, and ompA sequencing.
The life cycle of Rhipicephalus evertsi evertsi Neumann, 1897, is discussed under the following headings: larval feeding; larval drop; nymphal feeding; nymphal drop; nymphal moulting; adult feeding; adult drop; preoviposition period; oviposition period and incubation. Special attention has also been given to the development of both male and female reproductive organs, gametogensis and mating.
Six genera and 27 species of hard ticks (Ixodidae) currently are recognized in the United States east of the Mississippi River as follows: Amblyomma (4 species), Boophilus (1), Dermacentor (3), Haemaphysalis (2), Ixodes (16), and Rhipicephalus (1). We present a diagrammatic couplet key to the adults of the six genera and 27 species of Ixodidae found in the eastern portion of the United States.
Rickettsia conorii, a spotted fever group rickettsia which is transmitted by Rhipicephalus sp. complex ticks, was considered until now the only pathogenic rickettsia prevalent in Greece. Here, we report the presence of "Rickettsia mongolotimonae" (proposed name) detected simultaneously in a patient and in a Hyalomma anatolicum excavatum tick, sampled on the patient.
We report the first isolation of Rickettsia sibirica (strain mongolotimonae) from the blood of a patient and detection by polymerase chain reaction (PCR) of the rickettsia in a Rhipicephalus pusillus tick collected from a dead mongoose (Herpestes ichneumon) in the Alentejo region, Portugal. We describe also the first PCR detection of a new Rickettsia strain that is related to R. sibirica.
Major differences were observed in hexane, ethanol and butanol extracts of eggs obtained from Rhipicephalus evertsi evertsi females in which the porose areas functioned normally (AP+ eggs) and from R. evertsi evertsi in which the porose areas were selectively destroyed by electrocautery (AP- eggs). Mass yields and UV spectra of the hexane extracts were similar for AP+ and AP- eggs. The UV spect...
Study on the prevalence of ectoparasites and haemoparasites of domestic rats in parts of Akure South Local Government was carried out from July to September 2015. The rodents were trapped using locally fabricated traps. Body brushing technique was used to collect their ectoparasites. Blood samples from each rat were collected and examine using standard biological techniques. Specie of rodents c...
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