Engorged Female Ticks
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. In vivo study of a homeopathic medicine against Rhipicephalus (Boophilus) microplus in dairy cow
ABSTRACT The tick Rhipicephalus (Boophilus) microplus (Canestrini, 1887) (Acari: Ixodidae) causes large economic losses to cattle breeders and its control is hampered by problems of resistance to the main commercial synthetic acaricides and the risk of residues in animal products. Alternative controls are important for the sustainability of cattle breeding i
Rev. bras. farmacogn.. Publicado em: 2018-04
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2. PCR-based detection of babesia bovis and babesia bigemina in their natural host Boophilus microplus and cattle.
PCR and nested-PCR methods were used to assess the frequency of Babesia bovis and Babesia bigemina infection in Boophilus microplus engorged females and eggs and in cattle reared in an area with endemic babesiosis. Blood and the engorged female ticks were from 27 naturally infested calves and 25 crossbred cows. The frequency of both Babesia species was simil
International Journal of Parasitology. Publicado em: 2011
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3. Biologia do Amblyomma parvum, Aragão 1908 (Acari: Ixodidae) utilizando-se diferentes hospedeiros em condições de laboratório
Ticks are obligatory hematophagous ectoparasites and are thus infectious disease vectors for both humans and animals. To understand the epidemiology of tick-borne infectious diseases it is essential to know the life cycle of ticks. Amblyomma parvum is a Neotropical tick and its life cycle is poorly understood. In this work the biology of A. parvum is describ
Publicado em: 2010
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4. Evaluation in vitro of Nomuraea rileyi to control Rhipicephalus (Boophilus) microplus tick. / Avaliação in vitro dos efeitos do agente etiológico Nomuraea rileyi no controle biológico do carrapato Rhipicephalus (Boophilus) microplus.
Rhipicephalus (Boophilus) microplus causes severe economic losses to the Brazilian cattle raising industry. In nowadays, the control of the cattle tick is especially based on the use of chemical acaricides. The inadequate use of these acaricides allows the development of ticks resistant strains and environmental contamination. Several entomopathogenic fungal
Publicado em: 2008
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5. Artificial infestation of Boophilus microplus in beef cattle heifers of four genetic groups
Resistance of beef cattle heifers to the cattle tick Boophilus microplus was evaluated by artificial infestation of 66 beef cattle heifers of the following genetic groups: 16 Nelore (NE), 18 Canchim x Nelore (CN), 16 Angus x Nelore (AN) and 16 Simmental x Nelore (SN). The animals, with a mean age of 16.5 months, were maintained with no chemical tick control
Genetics and Molecular Biology. Publicado em: 2007
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6. Avaliação Quantitativa e Qualitativa das Proteínas dos Ovos de Rhipicephalus (Boophilus) microplus e Rhipicephalus (Rhipicephalus) sanguineus (Acari: Ixodidae) Durante a Oviposição e Embriogênse. / Quantitative and Qualitative Avaluation of Eggs Proteins of Rhipicephalus (Boophilus) microplus and Rhipicephalus (Rhipicephalus) sanguineus (Acari: Ixodidae) During Oviposition and Embryogenese.
To fill some gaps on intrinsic mechanisms of the biology of the oviposition and embryogenesis of R. (B.) microplus and R. (R.) sanguineus, was evaluated the variability protein in eggs per day of posture and incubation. For this, engorged female laid eggs in controlled environment chamber (27 1oC, 80 5% UR, and darkness). As soon as the female initiated the
Publicado em: 2007
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7. EFEITO DO NEMATÓIDE ENTOMOPATOGÊNICO Steinernema glaseri (STEINER, 1929) (RHABDITIDA: STEINERNEMATIDAE) ISOLADO SANTA ROSA SOBRE OS PARÂMETROS BIOLÓGICOS DE NINFAS INGURGITADAS DE Amblyomma cajennense (FABRÍCIUS, 1787) (ACARI: IXODIDAE)
Amblyomma cajennense (Fabrícius, 1787) (Acari: Ixodidade) is an ectoparasitic kind of horse, widely distributed in south and central America. The indiscriminate use of acaricidal has taken this animals population to a critical resistence situation to drugs and the exclusive use of acaricidal is just viable in pratical and economical terms became necessary t
Publicado em: 2007
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8. Resistance to pyrethroids and organophosphorus acaricides in cattle tick Boophilus microplus (Acari Ixodidae) / Resistencia do carrapato Boophilus microplus (Acari: Ixodidae) aos piretroides e organofosforados e o tratamento carrapaticida em pequenas fazendas
The cattle tick - Boophilus microplus (Acari: Ixodidae) ? is one of the principal causes of economic losses in the cattle farms in São Paulo state. The current situation of the tick control is characterized by a crisis in the production of new molecules with acaricidal properties and by an increasing in the parasites resistance to the products used to contr
Publicado em: 2005
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9. LEMONGRASS (Cymbopogon citratus) ALCOHOLIC EXTRACT ON CONTROL OF Boophilus microplus TICK IN DAIRY CATTLE / EXTRATO ALCOÓLICO DE CAPIM-CIDREIRA (Cymbopogon citratus) NO CONTROLE DO CARRAPATO (Boophilus microplus) DE BOVINOS LEITEIROS
O trabalho foi conduzido no município de Santa Maria (RS), com o objetivo de avaliar a eficácia do extrato alcoólico de capim-cidreira [Cymbopogon citratus (DC.) Staph] no controle do carrapato dos bovinos [Boophilus microplus (Canestrini, 1887)], comparado a um carrapaticida sintético. As pesquisas foram desenvolvidas nos Laboratórios de Bovinocultura
Publicado em: 2005
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10. Avaliation of the susceptibility of Boophilus microplus (Canestrini, 1887) ticks to acaricides, in the state of Rio de Janeiro / Avaliação da susceptibilidade do carrapato Boophilus microplus (Canestrini, 1887) a acaricidas no Estado do Rio de Janeiro
There were made sensibility-tests in vitro of acaricides in engorged female Boophilus microplus, ticks coming from 12 cattle farms localized in different municipes in Rio de Janeiro-state, from March to September 2002. The following active principles, with the respective concentrations, were tested: Amitraz 250 ppm, cipermetrine high CIS 250 ppm, cipermetrin
Publicado em: 2003
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11. Biology of Amblyomma aureolatum (Pallas, 1772) (Acari: Ixodidae) on some laboratory hosts in Brazil
The ixodid Amblyomma aureolatum is suspected to play a role in the epidemiology of wild life-cycle hemoparasites, which frequently infect dogs in rural and hunting areas in Brazil. Little is known about its bionomics. The objective of the present study was to evaluate some bionomic aspects of A. aureolatum ticks in Brazil. One engorged female, collected from
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-09
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12. Two feeding-induced proteins from the male gonad trigger engorgement of the female tick Amblyomma hebraeum
Most female ixodid ticks, once mated, feed to repletion within 6–10 days. Previous studies indicate that an engorgement factor (EF), passed to the female during copulation, may be the stimulus for engorgement. Here, we show that extracts of the testis/vas deferens of fed (but not unfed) male Amblyomma hebraeum contain EF bioactivity when injected into the
National Academy of Sciences.