Tick Resistance
Mostrando 1-12 de 39 artigos, teses e dissertações.
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1. Genetic engineering of Theileria parva lactate dehydrogenase gene: a new anti-theilerial target
ABSTRACT: Theileria parva is the causative agent of East Coast Fever (ECF), a tick borne disease, which results in major economic losses in cattle. Major problems in dealing with this illness are the high cost of drugs, development of resistance, and absence of effective vaccines. Thus, exploiting new targets for cost effective and higher therapeutic value d
Pesq. Vet. Bras.. Publicado em: 2018-05
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2. 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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3. Estudo do mecanismo de ação da atividade acaricida de Calea serrata (Asteraceae) em Rhipicephalus (Boophilus) microplus e da sua toxicidade em roedores
It has been demonstrated that the n-hexane extract of Calea serrata had acaricidal activity against larvae of R. microplus and R. sanguineus. Acetylcholinesterase (AChE), an enzyme that hydrolyses acetylcholine at cholinergic synapses, is a target for pesticides and its inhibition by organophosphates leads to paralysis and death of arthropods. Extensive uses
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Biocontrol of pigeon tick Argas reflexus (Acari: Argasidae) by entomopathogenic fungus Metarhizium Anisopliae (Ascomycota: Hypocreales)
The pigeon tick Argas reflexus is a pathogen-transmitting soft tick that typically feeds on pigeons, but can also attack humans causing local and systemic reactions. Chemical control is made difficult due to environmental contamination and resistance development. As a result, there is much interest in increasing the role of other strategies like biological c
Braz. J. Microbiol.. Publicado em: 2011-12
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5. Zero-inflated Poisson regression models for QTL mapping applied to tick-resistance in a Gyr x Holstein F2 population
Nowadays, an important and interesting alternative in the control of tick-infestation in cattle is to select resistant animals, and identify the respective quantitative trait loci (QTLs) and DNA markers, for posterior use in breeding programs. The number of ticks/animal is characterized as a discrete-counting trait, which could potentially follow Poisson dis
Genetics and Molecular Biology. Publicado em: 28/10/2011
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6. Genome wide scan for quantitative trait loci affecting tick resistance in cattle (Bos taurus x Bos indicus).
2010
BMC Genomics. Publicado em: 2011
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7. Pharmacological action of tick saliva upon haemostasis and the neutralization ability of sera from repeatedly infested hosts
Ticks are blood-feeding arthropods widely distributed in the world and vectors of several diseases. As haematophagy demands evasion strategies and repeatedly infested hosts develop protective immune responses, we investigated the mechanisms of the Rhipicephalus (Boophilus) microplus saliva anti-haemostatic activity and the possible relationship between the a
Publicado em: 2011
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8. Detection of a QTL associated with tick resistance on bovine chromossome 7 (BTA7) using A F2 experimental population.
2006
WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION. Publicado em: 2011
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9. Resistencia do carrapato Boophilus microplus a carrapaticidas no Brasil Central.
Esta publicacao tem por objetivo fornecer subsidios para o diagnostico de resistencia aos carrapaticidas e orientar quanto as acoes no caso de essa resistencia ser observada em uma propriedade rural. A Embrapa Cerrados desenvolveu um trabalho com o objetivo de caracterizar a susceptibilidade do B. microplus, em relacao aos principios ativos carrapaticidas ut
Planaltina: Embrapa Cerrados. Publicado em: 2011
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10. Parâmetros genéticos de temperamento e resistência de bovinos da raça Nelore ao carrapato Boophilus microplus e validação do uso de marcadores moleculares na seleção para essas características / Genetic parameters of docility and resistance to the tick Boophilus microplus and validation of the use of genetic markers in selectin for those traits
The study on traits like docility and resistante to ticks aims to help selection os animals with better genotypes to those traits, to increase productivity, but also keep adptation of those animals to the environment of extensive production systems used in the Brazilian beef production. Those animals, adapted to thse environmental conditions, should also opt
Publicado em: 2009
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11. Imunobiologia das infestações de bovinos pelo carrapato Rhipicephalus (Boophilus) microplus: estudo dos correlatos imunes de resistência e de susceptibilidade / The immunobiology of infestations with the cattle tick Rhipiceplahus (Boophilus) microplus: comparative immunologic and molecular studies of the tick-host interface in susceptible and resistant bovine hosts.
The skin of vertebrates is the largest for over 15,000 species of hematophagous arthropods. Among them are ticks, which are long-term feeders and interact with host defenses for days to weeks. Little is known about specialized strategies for eliminating ectoparasites, but ticks can induce immune responses in host. Bovines present variable and heritable level
Publicado em: 2009
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12. Expressão gênica em bibliotecas de cDNA de pele de bovinos F2 (Holandês × Gir) infestados com o carrapato Riphicephalus (Boophilus) microplus / Gene expression in skin cDNA libraries from F2 cattle (Holstein × Gyr) infested with the tick Riphicephalus (Boophilus) microplus
It is known that resistance to cattle tick Riphicephalus (Boophilus) microplus is inheritable and are primarily associated with zebu animals (Bos indicus), although also present at lower levels in some breed taurine (B. taurus). The elucidation of genetic resistance is one of the most promising factors to reduce production losses and to reduce the cost of th
Publicado em: 2009