Bovine Ticks
Mostrando 1-12 de 29 artigos, teses e dissertações.
-
1. An Alternative and Rapid Method for the Extraction of Nucleic Acids from Ixodid Ticks by Potassium Acetate Procedure
Four variants of the potassium acetate procedure for DNA extraction from ixodid ticks at different stage of their life cycles were evaluated and compared with phenol-chloroform and ammonium hydroxide methods. The most rapid and most efficient variant was validated in the DNA extraction procedure from the engorged ticks collected from bovine, canine as well a
Braz. arch. biol. technol.. Publicado em: 2014-08
-
2. Assessing bovine babesiosis in Rhipicephalus (Boophilus) microplus ticks and 3 to 9-month-old cattle in the middle Magdalena region, Colombia
Babesia sp. is a protozoan hemoparasite that affects livestock worldwide. The Colombian Middle Magdalena is an enzootic region for babesiosis, but there is no previous research providing detail on its transmission cycle. This study aims to assess some Babesia sp. infection indicators in cattle and ticks from the area, by using direct microscopic and molecula
Pesq. Vet. Bras.. Publicado em: 2014-04
-
3. Avaliação in vivo da eficiência de dois imunógenos recombinantes derivados do peptídeo SBm7462 para o controle do carrapato Rhipicephalus (Boophilus) microplus (Canestrini 1887) / Evaluation efficacy in live of two recombinant immunogens derivatives of peptide SBm7462 in the control of the tick Rhipicephalus (Boophilus) microplus (Canestrini 1887)
Recombinant peptides rBmseq1 and RBmseq4 were evaluated as immunogenic for the control of ticks R. (B. ) microplus in test of stable. We used 17 bovine animals of the half-breed average degree of blood of 7/8 (H/Z), which were kept under the management routine in the Sector of isolation of bovine animals in the Department of Veterinary UFV. The animals were
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
-
4. Detecção do vírus da diarreia viral bovina em carrapatos Rhipicephalus (Boophilus) microplus alimentados em bovino persistentemente infectado= Detection of bovine viral diarrhea virus in Rhipicephalus (Boophilus) microplus ticks fed on persistently infected cattle / Detection of bovine viral diarrhea virus in Rhipicephalus (Boophilus) microplus ticks fed on persistently infected cattle
Background: Bovine viral diarrhea virus (BVDV) is one of the main agents that cause economical losses in cattle worldwide. Congenitally infected calves that are born persistently infected (PI) to BVDV are the main sources of infection to susceptible cattle. Direct contact is the most important form of transmission, but indirect contact can also spread BVDV,
Publicado em: 2011
-
5. Detecção do virus da diarréia bovina em carrapatos Rhipicephalus (boophilus) microplus alimentados em bovino persistentemente infectado
Background: Bovine viral diarrhea virus (BVDV) is one of the main agents that cause economical losses in cattle worldwide. Congenitally infected calves that are born persistently infected (PI) to BVDV are the main sources of infection to susceptible cattle. Direct contact is the most important form of transmission, but indirect contact can also spread BVDV,
Publicado em: 2011
-
6. 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
-
7. Caracterização de proteinases envolvidas na geração de peptídeos antimicrobianos no intestino de Rhipicephalus (Boophilus) microplus. / CE. Characterization of proteinases involved in the generation of antimicrobial peptides in the gut of Rhipicephalus (Boophilus) microplus.
It is known that hemoglobin is a rich source of antimicrobial peptides (hemocidins). The first hemoglobin-derived hemocidin characterized in ticks was the peptide Hb33-61, which is active against Gram-positive bacteria and fungi. It is believed that hemocidins are endogenously generated in the tick gut. In this work we biochemically characterized a cathepsin
Publicado em: 2010
-
8. 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
-
9. 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
-
10. Seleção e caracterização de peptídeos recombinantes ligantes a anticorpos monoclonais reativos a proteínas de Anaplasma marginale
Bovine anaplasmosis is caused by Anaplasma marginale and A. centrale. The most pathogenic and important species for cattle production is A. marginale, and is widely distributed in tropical, subtropical and temperate regions of the world. A. marginale is an intra-erythrocyte rickettsia of susceptible ruminants, biological and mechanically transmitted by ticks
Publicado em: 2008
-
11. Selection of isolates of Beauveria bassiana (BALS.) VUILL for control of Boophilus microplus (Canestrini) larvae / Seleção de isolados do fungo Beauveria bassiana (BALS.) VUILL. para o controle de larvas do carrapato Boophilus microplus (Canestrini)
o presente trabalho teve por objetivo avaliar a patogenicidade e a virulência do isolado IBCB66 de Beauveria bassiana, sobre larvas de B. microplus, com a finalidade de se utilizar esta cepa como padrão em estudos de seleção de isolados deste fungo e testar a compatibilidade da(s) melhor(es) estirpes(s) selecionada(s) com carrapaticidas comerciais. Seis
Publicado em: 2007
-
12. Perfil fenotípico de linfócitos periféricos de bovinos de raças européias
The phenotypic profile of bovine lymphocytes was evaluated in 18 bovines (Bos taurus) from three different breeds, being nine Holstein, six Hereford, and three Brown Swiss. All animals were free from ticks and hemoparasites, as determined after jugular vein blood sampling. The immunophenotypes of peripheral lymphocytes were evaluated by flow cytometry. Perip
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2004-02