Results 51 to 60 of about 2,315 (158)

Endocrinologia e controle da vitelogênese em carrapatos

Acta Scientiae Veterinariae, 2018
Background : : : : Ticks are distributed worldwide, with impacts on human and animal health. The cattle tick Rhipicephalus (Boophilus) microplus is the main parasite that affects livestock in tropical and subtropical regions of the world, causing large economical losses.
Seixas, Adriana, Oldiges, Daiane Patricia, Vaz Jr., Itabajara da Silva, Termignoni, Carlos   +3 more
openaire   +4 more sources

Automated identification of spotted‐fever tick vectors using convolutional neural networks

Medical and Veterinary Entomology, Volume 39, Issue 4, Page 829-841, December 2025.
We evaluate the performance of convolutional neural networks (CNN) AlexNet, ResNet‐50 and MobileNetV2 for the automated identification of tick species capable of transmitting spotted fever. CNNs achieved accuracy rates of ~90% in identifying ticks and showed sensitivities of 59%–100% according to species, sex, position or image resolution.
Isadora R. C. Gomes, Vinícius L. Miranda, José Fabrício C. Leal, Igor P. Oliveira, Paula J. Silva, Karla Bitencourth, Claudio M. Rodrigues, Liege R. Siqueira, Marcelo B. Labruna, Gilberto S. Gazeta, Marinete Amorim, Rodrigo Gurgel‐Gonçalves   +11 more
wiley   +1 more source

Tripanosomatídeos similares a Trypanosoma theileri no carrapato dos bovinos Boophilus microplus [PDF]

Revista Brasileira de Parasitologia Veterinária, 2008
Descreve-se a ocorrência de formas epimastigotas de um tripanosomatideo na hemolinfa do carrapato do bovino Boophilus microplus no Estado do Rio Grande do Sul. Evidências morfológicas sugerem tratar-se de Trypanosoma theileri , espécie descrita como não patogênica aos bovinos e que usualmente é transmitida por tabanídeos.
João Ricardo Martins, Romário C. Leite, Rovaina L. Doyle   +2 more
openaire   +1 more source

Carrapatos: protocolos e técnicas para estudo. [PDF]

, 2019
O livro que ora se apresenta ao leitor originou-se da publicação anterior, Carrapatos no Brasil: biologia, doenças transmitidas e controle (Andreotti; Koller, 2013).

core  

Caracterização da população de ectoparasitos em cães de núcleos de expansão urbana de Juiz de Fora, Minas Gerais, Brasil Characterization of ectoparasites on dogs in the nucleus of urban expansion of Juiz de Fora, Minas Gerais, Brazil

Revista Brasileira de Parasitologia Veterinária, 2008
No presente trabalho caracterizou-se a população de ectoparasitos em cães de núcleo de expansão urbana de Juiz de Fora, MG. As coletas foram realizadas de julho a setembro de 2003, examinando-se 101 cães SRD (sem raça definida).
Denise F. Rodrigues, Erik Daemon, André Flávio S.F. Rodrigues   +2 more
doaj   +1 more source

Host–parasite relationship in urban environments: A network analysis of haemoparasite infections in Nasua nasua Linnaeus (South American coati)

Medical and Veterinary Entomology, Volume 39, Issue 3, Page 456-463, September 2025.
Urban environments alter host–parasite dynamics, as seen in Nasua nasua, where haemotropic Mycoplasma plays a key role in parasite spread through frequent social interactions. Network analysis revealed low modularity in interactions between N. nasua and tick‐borne haemoparasites, with functional roles unaffected by biotic factors, tick infestation or ...
Filipe Martins Santos, Nayara Yoshie Sano, Livia Perles, Marcos Rogério André   +3 more
wiley   +1 more source

Immunogenic potential of Rhipicephalus (Boophilus) microplus aquaporin 1 against Rhipicephalus sanguineus in domestic dogs

Revista Brasileira de Parasitologia Veterinária
This study evaluated a recombinant aquaporin 1 protein of Rhipicephalus (Boophilus) microplus (RmAQP1) as antigen in a vaccine against R. sanguineus. Five dogs were immunized with RmAQP1 (10 µg) + adjuvant (Montanide) (G1), and five were inoculated with ...
Patricia Martinez Évora, Gustavo Seron Sanches, Felix David Guerrero, Adalberto Pérez de León, Gervásio Henrique Bechara   +4 more
doaj   +1 more source

In silico analysis for identification of tick phagotopes selected by phage-displayed libraries Análises in sílico na identificação de fagotopos de carrapatos selecionados por bibliotecas de phage display

Revista Brasileira de Parasitologia Veterinária, 2009
Phage display techniques have been widely employed to map epitope structures which have served as the basis for developing molecular vaccines. We have applied this technique to map specific epitopes of Rhipicephalus (Boophilus) microplus.
Carlos Roberto Prudencio, Rafael Nascimento, Moacir Marchiori Filho, Andrea de Oliveira Marques Marra, Guilherme Rocha Lino de Souza, Juliana Franco Almeida, Rone Cardoso, Matias Pablo Juan Szabó, Luiz Ricardo Goulart   +8 more
doaj   +1 more source

Spatial capture‐recapture can improve environmental impact assessments for large carnivores

Ecological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.
Most Environmental Impact Assessments for large carnivores rely on summary statistics or relative abundance indices, all of which ignore imperfect detection and may lead to biased and unreliable conclusions about population status and infrastructure impacts. By applying spatial capture‐recapture (SCR) models to georeferenced genetic data from wolves in
Gonçalo Ferrão da Costa, Miguel Mascarenhas, Carlos Fonseca, Chris Sutherland   +3 more
wiley   +1 more source

ESPÉCIES DE CARRAPATOS COLETADOS EM ÁREA PREDISPOSTA PARA A FEBRE MACULOSA BRASILEIRA

, 2016
A Febre Maculosa Brasileira é uma zoonose cujo agente etiológico é a bactéria Rickettsia rickettsii, sendo que, no Brasil, o principal vetor é o carrapato Amblyomma sculptum.
Franco, Caroline Siqueira, Xavier Linhares, Arício   +1 more
core   +1 more source