9 documents found, page 1 of 1
Amblyomma scalpturatum Neumann, 1906 (Acari: Ixodidae): confirmation in Acre St...
Aguirre,André de Abreu Rangel; Rodrigues,Vinícius da Silva; Costa,Ivaneide Nunes da; Garcia,Marcos Valério; Csordas,Bárbara Guimarães; Andreotti,RenatoAbstract Amblyomma scalpturatum is a tick species that is unique to South America. It is commonly associated with the Amazon biome and has been reported in some Brazilian states. This tick species exhibits host specificity: it parasitizes tapirs and suidae. Its role in transmitting pathogens to humans is still unknown. Amblyomma scalpturatum is known to be a human-biting tick; however, there is only one report ...
Wildlife species, Ixodid fauna and new host records for ticks in an Amazon fore...
Zimmermann,Namor Pinheiro; Aguirre,André de Abreu Rangel; Rodrigues,Vinicius da Silva; Garcia,Marcos Valério; Medeiros,Jansen FernandesAbstract The objective of this work was to evaluate the diversity of ticks associated with free-living animals and to investigate new host records for ticks. Ticks were collected from animals rescued during the flood of the Jamari River in the municipality of Ariquemes, state of Rondônia, North Region of Brazil. A total of 39 animals were captured, out of which 10 were amphibians, 19 were reptiles and 10 were m...
Analysis of Bm86 conserved epitopes: is a global vaccine against Cattle Tick Rh...
Blecha,Isabella Maiumi Zaidan; Csordas,Bárbara Guimarães; Aguirre,André de Abreu Rangel; Cunha,Rodrigo Casquero; Garcia,Marcos Valério; Andreotti,RenatoAbstract The cattle tick Rhipicephalus microplus causes significant economic losses in agribusiness. Control of this tick is achieved mainly through the application of chemical acaricides, often resulting in contamination of animal food products and of the environment. Another major concern associated with acaricide use is the increasing reports of resistance of this tick vector against the active ingredients o...
Evaluation of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) resistance ...
Higa,Leandro de Oliveira Souza; Garcia,Marcos Valério; Barros,Jacqueline Cavalcante; Koller,Wilson Werner; Andreotti,RenatoAbstract The Rhipicephalus (Boophilus) microplus tick is responsible for considerable economic losses in Brazil, causing leather damage, weight loss and reduced milk production in cattle and results in the transmission of pathogens. Currently, the main method for controlling this tick is using acaricides, but their indiscriminate use is one of the major causes of resistance dissemination. In this study, the adu...
New insights from molecular characterization of the tick Rhipicephalus (Boophil...
Csordas,Bárbara Guimarães; Garcia,Marcos Valério; Cunha,Rodrigo Casquero; Giachetto,Poliana Fernanda; Blecha,Isabella Maiumi Zaidan; Andreotti,RenatoAbstract The Rhipicephalus (Boophilus) microplus complex currently consists of five taxa, namely R. australis, R. annulatus, R. (B.) microplus clade A sensu, R. microplus clade B sensu, and R. (B.) microplus clade C sensu. Mitochondrial DNA-based methods help taxonomists when they are facing the morpho-taxonomic problem of distinguishing members of the R. (B.) microplus complex. The purpose of this study was to...
Environmentally associated ticks (Acari: Ixodidae) in Campo Grande, Mato Grosso...
Garcia,Marcos Valério; Silva,Dayana Campelo da; Almeida,Robson Ferreira Cavalcante de; Cunha,Rodrigo Casquero; Matias,JaquelineHerein, we report tick species found on wild and domestic animals and in the environment during a one-year sampling period at the Brazilian Farming Research Company beef cattle unit (Embrapa Beef Cattle), which is located within the urban area of Campo Grande, Mato Grosso do Sul, Brazil. From 55 wild hosts including six different species (Nasua nasua, Cebus spp., Cerdocyon thous,Myrmecophaga tridactyla, Tamandu...
Calculation of the efficacy of vaccines against tick infestations on cattle
Cunha,Rodrigo Casquero; Andreotti,Renato; Garcia,Marcos Valério; Aguirre,André de Abreu Rangel; Leitão,AlexandreCattle ticks are responsible for great economic losses in cattle farming worldwide, and their main control method, chemicals, has been showing problems, whether resulting from the development of resistant strains of ticks or environmental contamination. Research studies directed toward developing vaccines against ticks are emerging. One way to evaluate those vaccines is to calculate the percentage of efficacy. ...
Chemical identification of Tagetes minuta Linnaeus (Asteraceae) essential oil a...
Garcia,Marcos Valério; Matias,Jaqueline; Barros,Jacqueline Cavalcante; Lima,Dênis Pires de; Lopes,Rosângela da Silva; Andreotti,RenatoThe control of tick species that affect animal production is vital for the economic welfare of the cattle industry. This study focused on testing the acaricidal activity of the essential oil from the leaves and stems of Tagetes minuta against several Brazilian tick species, including Rhipicephalus (Boophilus) microplus, Rhipicephalus sanguineus, Amblyomma cajennense and Argas miniatus. The chemical composition ...
Patogenicidade de isolados de Beauveria bassiana para ovos, larvas e ninfas ing...
Prette,Nancy; Monteiro,Antonio Carlos; Garcia,Marcos Valério; Soares,Vando EdesioO presente trabalho objetivou avaliar a ação dos isolados JAB 07, CB 7 e AM 9 do fungo Beauveria bassiana para ovos, larvas e ninfas ingurgitadas de Rhipicephalus sanguineus. Padronizou-se a concentração de 109 conídios mL-1 para cada isolado e por meio de diluições seriadas, obtiveram-se as suspensões com concentrações de 10(8) e 10(7)con. mL-1. Preparou-se um bioensaio para cada fase do ciclo de vida do carra...