نتایج جستجو برای: دادههای tick by tick
تعداد نتایج: 7052521 فیلتر نتایج به سال:
Tick infestations and tick-borne diseases continue to be the leading causes of loss in livestock revenue, particularly developing countries, despite prevalent use synthetic acaricides. Research on plants as alternative sources anti-arthropod agents has received attention from many researchers recent past. This interest is mainly motivated by compelling need move away over-reliance chemicals, wh...
The cattle industry is one of the most important agroeconomic activities in Mexico. The national herd is estimated to include approximately 33.5. million head of cattle. Ticks and tick-borne diseases are principal factors with a negative impact on cattle health and production. The most economically important tick species parasitizing cattle in Mexico are Rhipicephalus microplus, R. annulatus, a...
background : boophilus annulatus is an obligate blood feeder tick that can cause great losses in animals due to anemia and its ability to injure its host skin directly. the aim of this study was identification of cattle humoral immune response to some tick proteins during experimental infestation. methods : immune sera against tick were collected from experimentally infested cattle with ticks. ...
Ticks had to adapt to an existing and complex vertebrate hemostatic system from being free-living scavengers. A large array of anti-hemostatic mechanisms evolved during this process and includes blood coagulation as well as platelet aggregation inhibitors. Several questions regarding tick evolution exist. What was the nature of the ancestral tick? When did ticks evolve blood-feeding capabilitie...
Ticks and the pathogens they transmit constitute a growing burden for human and animal health worldwide. Vector competence is a component of vectorial capacity and depends on genetic determinants affecting the ability of a vector to transmit a pathogen. These determinants affect traits such as tick-host-pathogen and susceptibility to pathogen infection. Therefore, the elucidation of the mechani...
BACKGROUND Tick borne encephalitis is the most frequent vector-transmitted infectious disease of the central nervous system in Europe and Asia. The disease caused by European subtype of tick borne encephalitis virus has typically a biphasic clinical course with the second phase presenting as meningitis, meningoencephalitis, or meningoencephalomyelitis. Cerebrospinal fluid pleocytosis is conside...
Anaplasma phagocytophilum is a gram-negative intracellular bacterium that transmitted by hard ticks. A. phagocytophilum infect and multiply in the organs of ticks, in particular the salivary glands which enable the transmission to vertebrate hosts during feeding. The tick becomes infected by feeding on an infected host and there is transstadial but not transovarial passage of the organism. The ...
BACKGROUND: Ticks are the most important vectors whichtransmit several arthropod-borne diseases such as theileriosis,babesiosis, and anaplasmosis. OBJECTIVES: An epidemiologicalstudy was conducted in Semnan area to determine thecurrent situation of tick infestation in sheep and assess theefficacy of usage of CIS-cypermethrin against tick infestationunder field condition. METHODES: Sampling was ...
Background and purpose: Ticks, as ectoparasites, biological vectors and reservoirs of various diseases, are involved in transmission of pathogens to humans and animals. This research aimed at modeling the probability of tick vectors presence in Ahvaz, Hamidiyeh, Bavy, and Karoon in southwest of Iran. Materials and methods: To perform the modeling, eight criteria (slope, elevation, soil texture...
he cattle tick, Rhipicephalus microplus, is the main ectoparasite of livestock in tropical countries, in Thailand particularly. This tick causes a range of problems, including anemia, widespread production losses, as well as lethal tick-borne diseases in animals. Control of tick infestations is based on the use of chemical acaricides, which have numerous undesirable side-effects, for example, e...
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