نتایج جستجو برای: cattle ticks
تعداد نتایج: 57563 فیلتر نتایج به سال:
b a ckground: ticks are important vectors of human and animal pathogens. they are considered as main vectors fortransmission of many viral, bacterial, rickettsial and parasitical pathogens. the aim of the present study was to find out species diversity of ticks, which infested the domestic ruminants in zabol county, eastern iran in 2012. m e t hods: ticks were selected randomly from sheep, goat...
Rhipicephalus appendiculatus serpin-3 (RAS-3), R. appendiculatus serpin-4 (RAS-4) and a 36-kDa immuno-dominant protein of R. appendiculatus (RIM36) were reported as candidate antigens for the anti-tick vaccine to control ixodid ticks. In the present study, we generated recombinant proteins of RAS-3 (rRAS-3), RAS-4 (rRAS-4) and RIM36 (rRIM36), and assessed their potency as an anti-tick cocktail ...
A seroepidemiologic survey of Coxiella burnetii in cattle and chickens in Thailand was carried out using indirect fluorescent antibody test. Nine of the 130 serum samples from cattle were positive for antibodies against C. burnetii, with antibody titers ranging from 32 to 64. Only one of 113 serum samples from chickens was seropositive, with antibody titer of 16. No C. burnetii-specific DNA was...
Ticks are obligate haematophagous ectoparasites of wild and domestic animals as well as humans, considered to be second worldwide to mosquitoes as vectors of human diseases, but the most important vectors of disease-causing pathogens in domestic and wild animals. Babesia spp. are tick-borne pathogens that cause a disease called babesiosis in a wide range of animals and in humans. In particular,...
Tick-borne spotted fever group (SFG) rickettsioses are emerging human diseases caused by obligate intracellular Gram-negative bacteria of the genus Rickettsia. Despite being important causes of systemic febrile illnesses in travelers returning from sub-Saharan Africa, little is known about the reservoir hosts of these pathogens. We conducted surveys for rickettsiae in domestic animals and ticks...
In an almost 50% response to a survey questionnaire, farmers in the heartwater-endemic regions of South Africa indicated that they were experiencing losses of 1.3, 0.3 and 0.2% in cattle due to heartwater, redwater and anaplasmosis, respectively. In small stock, the heartwater mortality was 3.8%. Only 35% of cattle farmers and 15% of farmers keeping sheep and goats, vaccinate their animals agai...
Ticks are most prevalent vectors for the transmission of tick-borne diseases to animals (both wild and domesticated) as well humans. Due favourable subtropical conditions Pakistan, ticks abundant parasitize ruminants resulting in their morbidity mortality causing economic losses owners. In present study, a total 991 from bovines (n = 690 cattle; n 301 buffaloes) were collected during July Octob...
Southern cattle ticks, Boophilus microplus (Canestrini) (Acari: Ixodidae), collected in Coahuila, Mexico, were determined to be resistant to permethrin. Discriminating concentration (DC) tests at the LC99 and 2X the LC99 of susceptible ticks produced 0 and 0.5% mortality, respectively, for permethrin. However, measured mortalities for coumaphos and amitraz acaricides were within the expected ra...
The control of ticks with vaccines is of global interest. Experimental vaccines incorporate new technologies as soon as they are available. Historically, the main vaccine studies have focused on the one-host cattle tick Rhipicephalus microplus, and efficacy evaluations have been standardised for this tick species. On the other hand, evaluations of vaccine candidates for three-host ticks are bei...
Nine splenectomised calves were infested with dissimilar numbers of adult Boophilus microplus ticks 72 h after collection as engorged nymphs from three non splenectomised calves with different levels of Anaplasma marginale rickettsaemia. Successful transmission of A. marginale appeared to be more dependent on the level of rickettsaemia of the donor calves than on the number of ticks attaching t...
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