Las garrapatas son ectoparásitos hematófagos obligados que actúan como vectores biológicos de diversos patógenos ya que parasitan aves, reptiles y mamíferos. Las enfermedades en las cuales actúan como vectores son la anaplasmosis, piroplasmosis, borreliosis, theileriosis y diversas enfermedades ri...
The negative impact of Rhipicephalus microplusinfestations on cattle farming is well-known. The main control method is the use of ixodicides, which have as side effects environmental contamination, the selection of resistant lineages, and toxicity. Their use is also prohibited in systems that produce org...
Fernandez, Carla Maria Mariano;
Lorenzetti, Fabiana Brusco;
Kleinubing, Sirlene Adriana;
de Andrade, Joao Paulo Pinguello;
Bortolucci, Wanessa de Campos;
Goncalves, José Eduardo;
Júnior, Ranulfo Piau;
Cortez, Garcia Diógenes Aparício;
Gazim, Zilda Cristiani;
Filho, Benedito Prado Dias.
The present study aimed to analyze the chemical composition of the essential oil from Garcinia gardneriana (Planchon & Triana) Zappi leaves and fruits, and to determine its acaricidal activity on Rhipicephalus microplusy larval packet test and larvicidal action on Aedes aegyptiby larval immersion test. ...
Garcinia/química,
Extractos Vegetales/farmacología,
Extractos Vegetales/química,
Aceites Volátiles/farmacología,
Aceites Volátiles/química,
Insecticidas/farmacología,
Insecticidas/química,
Rhipicephalus/efectos de los fármacos,
Larva,
Sesquiterpenos/análisis,
Aedes/efectos de los fármacos,
Acaricidas,
Cromatografía de Gases y Espectrometría de Masas
The number of domestic animals living with human beings is rapidly increasing in parallel with an enhanced risk of transmission of their parasites and the pathogens they might carry. The aim of this study was to assess the occurrence of hematophagous arthropods infesting domestic animals from Northeaster...
The Rhipicephalus (Boophilus) microplus tick is a major concern for the livestock market worldwide, as it causes serious economic damage. Plant-derived acaricides are an attractive alternative to control this ectoparasite and limit the development of resistance. Therefore, the aim of this study was to ev...
Cunha, Rodrigo Casquero;
Saimo-Kahwa, Margaret;
Garcia, Marcos Valério;
Santos, Francisco Denis Souza;
Samuel, Emukule;
Ann, Nanteza;
Ikwap, Kokas;
Akwongo, Claire Julie;
Leite, Fábio Pereira Leivas;
Andreotti, Renato.
In this study, the recombinant gut protein rRa92A produced in Pichia pastoris yeast cells was used to immunize cattle in two experiments, one in Brazil and the other in Uganda. In both experiments, the animals were intramuscularly (IM) injected with 200 µg of recombinant protein in Brazil on days 0, 30 ...
The aim of the present study was to evaluate the resistance of tick populations on 16 family farms that were members of the agricultural producers’ cooperative of the São Pedro region of the state of São Paulo (COOPAMSP). Bioassays were conducted on nine commercial products in 2018 and 2019. Their ac...
Abstract Southern cattle tick resistance to pour-on and injectable acaricides has yet to be evaluated on a broader scope, and the paucity of information on the subject may hinder efforts to control this parasite. The objective of this study was to evaluate the resistance profile of ten populations of Rhi...
Acaricidas/farmacología,
Brasil,
Bovinos,
Enfermedades de los Bovinos/parasitología,
Resistencia a Medicamentos,
Ivermectina/farmacología,
Compuestos de Fenilurea/farmacología,
Pirazoles/farmacología,
Rhipicephalus/efectos de los fármacos,
Infestaciones por Garrapatas/parasitología,
Infestaciones por Garrapatas/veterinaria
Abstract This study reports the action of essential oils (EO) from five plants on the activity of native and recombinant acetylcholinesterases (AChE) from Rhipicephalus microplus. Enzyme activity of native susceptible AChE extract (S.AChE), native resistant AChE extract (R.AChE), and recombinant enzyme (...
Abstract Ectoparasitic infestation in dairy cattle, the most common being Rhipicephalus (Boophilus) microplus, causes significant loss in production. The control of ectoparasites often occurs incorrectly, resulting in resistance to the active ingredients and residues in milk. To understand of acaricide u...
