Results 211 to 220 of about 17,670 (259)
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Host resistance in cattle tick control
Parasitology Today, 1993Cattle ticks are an important constraint on the livestock industry, particularly in tropical and subtropical areas, mainly because of the diseases they transmit and the costs of control. Conventional control is by means of acaricides; although there are still serious drawbacks, these can be minimized by a strategic approach.
J J, de Castro, R M, Newson
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Transboundary Tick and Tick-Borne Pathogen Threats to Cattle
Veterinary Clinics of North America: Food Animal PracticeTransboundary incursions of ticks and tick-borne pathogens are ever present concerns for US cattle industries. Global trade in livestock and wildlife, historic and emerging transboundary issues with endemic tick populations and pathogens, and migratory bird flyways are pathways of concern.
Pete D, Teel, Thomas, Hairgrove
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Veterinary Parasitology, 1978
Abstract Four genera of cattle ticks were found and identified during two tick surveys: Amblyomma, Boophilus, Hyalomma and Rhipicephalus. Amblyomma variegatum was the only species found of genus Amblyomma. The genus Boophilus was represented by two species: B. microplus and B. decoloratus, and the genus Hyalomma by two species: H.
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Abstract Four genera of cattle ticks were found and identified during two tick surveys: Amblyomma, Boophilus, Hyalomma and Rhipicephalus. Amblyomma variegatum was the only species found of genus Amblyomma. The genus Boophilus was represented by two species: B. microplus and B. decoloratus, and the genus Hyalomma by two species: H.
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A SURVEY FOR RESISTANCE IN CATTLE TICKS TO ACARICIDES
Australian Veterinary Journal, 1981SUMMARY: A survey was made from late 1976 to late 1977 to determine the extent of resistance to acaricides in the cattle tick Boophilus microplus in Queensland. Questionnaires and requests for samples of ticks were forwarded to more than 900 randomly selected stock owners in the tick infested area which had been divided into 4 regions, Far North ...
W J, Roulston +6 more
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Adaptations of the tick-borne pathogen, Anaplasma marginale, for survival in cattle and ticks
Experimental & Applied Acarology, 2002The tick-borne cattle pathogen Anaplasma marginale (Rickettsiales: Anaplasmataceae) multiplies within membrane-bound inclusions in host cell cytoplasm. Many geographic isolates of A. marginale occur that vary in genotype, antigenic composition, morphology and infectivity for ticks. A tick cell culture system for propagation of A. marginale proved to be
Katherine M, Kocan +3 more
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Parthenogenesis in the Cattle Tick, Boophilus microplus
Nature, 1963ALTHOUGH bisexual reproduction is usual among ticks, there have been reports of parthenogenesis in various species including Amblyomma agamum1, Rhipicephalus bursa2, A. dissimile3, Hyalomma anatolicum4, Ornithodorus moubata5, and Haemaphysalis bispinosa6; but there appears to be no previous record of parthenogenesis in Boophilus microplus.
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1981
Of the 800 tick species which have thus far been described, populations or strains of approximately 50 argasids and ixodids are potentially capable of causing pathological and/or pathophysiological changes through inoculation of unknown uninfectious noxes during repletion. These noxes are generally interpreted as toxins.
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Of the 800 tick species which have thus far been described, populations or strains of approximately 50 argasids and ixodids are potentially capable of causing pathological and/or pathophysiological changes through inoculation of unknown uninfectious noxes during repletion. These noxes are generally interpreted as toxins.
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Outlook on Agriculture, 1964
The zebu (Bos indicus) cattle in East Africa, totalling over 18 million head, are extraordinarily well adapted to their harsh environment. Neglected by their owners, and often condemned as causes of soil erosion, they are still almost the sole effective means of winning humanfoodfrom the immense semi-arid areas of intractable thorn-bush and woodland of
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The zebu (Bos indicus) cattle in East Africa, totalling over 18 million head, are extraordinarily well adapted to their harsh environment. Neglected by their owners, and often condemned as causes of soil erosion, they are still almost the sole effective means of winning humanfoodfrom the immense semi-arid areas of intractable thorn-bush and woodland of
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Insecticides for Control of the Cattle Tick and the Southern Cattle Tick on Cattle1
Journal of Economic Entomology, 1968R. O. Drummond +3 more
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