Marchesini, Paula;
Oliveira, Débora Ramos de;
Gomes, Geovany Amorim;
Rodrigues, Tigressa Helena Soares;
Maturano, Ralph;
Fidelis, Queli Cristina;
Catunda Júnior, Francisco Eduardo Aragão;
Carvalho, Mário Geraldo de;
Bittencourt, Vânia Rita Elias Pinheiro;
Monteiro, Caio Márcio Oliveira.
Abstract This study aimed to chemically characterize the essential oils (EOs) of Cinnamomum zeylanicum (cinnamon) and Eremanthus erythropappus (candeia) and evaluate their acaricidal activity, together with that of their major compounds and cinnamyl acetate derivative, against Rhipicephalus microplus. Es...
Fipronil was registered in Uruguay in 1997, and, since then, it has been used for the control of Haematobia irritans irritans and Rhipicephalus microplus. The susceptibility of H. irritants to this drug has not been evaluated. Therefore, the goal of the present study was to evaluate the resistance of H. ...
Abstract Cattle tick fever (CTF) causes significant economic losses in the livestock sector. The pathogenic action of the hemoparasites is associated with anemia, weight loss, abortion and reduced productivity, which result with animal death. Programs to prevent CTF involve several procedures, including ...
Anaplasmosis/diagnóstico,
Anaplasmosis/epidemiología,
Anaplasmosis/prevención & control,
Babesiosis/diagnóstico,
Babesiosis/epidemiología,
Babesiosis/prevención & control,
Bovinos,
Enfermedades de los Bovinos/prevención & control,
Quimioprevención/veterinaria,
Rhipicephalus,
Infestaciones por Garrapatas/prevención & control,
Infestaciones por Garrapatas/veterinaria
Lima, Hélimar Gonçalves de;
Santos, Francianne Oliveira;
Santos, Acidália Carine Vieira;
Silva, Gisele Dias da;
Santos, Rafaela Jesus dos;
Carneiro, Kelli de Oliveira;
Reis, Isabella Mary Alves;
Estrela, Isabela de Oliveira;
Freitas, Humberto Fonseca de;
Bahiense, Thiago Campanharo;
Pita, Samuel Silva da Rocha;
Uzeda, Rosângela Soares;
Branco, Alexsandro;
Costa, Silvia Lima;
Batatinha, Maria José Moreira;
Botura, Mariana Borges.
Abstract We investigated the in vitro acaricide activity of the methanolic extract (ME) and alkaloid-rich fraction (AF) of Prosopis juliflora on Rhipicephalus microplus and correlated this effect with acetylcholinesterase (AChE) inhibition. The acaricide activity was evaluated using adult and larval imme...
Acaricidas/farmacología,
Alcaloides/farmacología,
Colinesterasas/metabolismo,
Cromatografía Liquida,
Activación Enzimática/efectos de los fármacos,
Larva,
Simulación del Acoplamiento Molecular,
Extractos Vegetales/farmacología,
Prosopis/química,
Rhipicephalus/efectos de los fármacos,
Rhipicephalus/enzimología,
Espectrometría de Masas en Tándem
Nogueira, Michel Ruan dos Santos;
Camargo, Mariana Guedes;
Rodrigues, Caio Junior Balduino Coutinho;
Marciano, Allan Felipe;
Quinelato, Simone;
Freitas, Maria Clemente de;
Fiorotti, Jéssica;
Sá, Fillipe Araújo de;
Perinotto, Wendell Marcelo de Souza;
Bittencourt, Vânia Rita Elias Pinheiro.
Abstract The effects of two different products - Metarril® SP Organic (dry conidia) and Metarril® SC Organic (emulsifiable concentrated conidia in vegetable oil) - on eggs, larvae and Rhipicephalus microplus engorged females were here explored. Three concentrations (108, 107, and 106 conidia mL-1) for ...
Brazil has one of the largest commercial cattle herds in the world, which naturally coexist with an enormous number of parasitic species. Southern cattle tick, Rhipicephalus (Boophilus) microplus, is among these species, interfering with animal productivity and causing losses to the beef and dairy cattle...
Abstract Mycoplasma ovis is an emerging zoonotic pathogen with a worldwide distribution and can cause mild to severe hemolytic anemia, icterus, and poor weight gain in animals. Although M. ovis has been described in small ruminants worldwide, data on M. ovis in sheep in Brazil is unknown. The objective o...
ADN Ribosómico/genética,
Mycoplasma/clasificación,
Mycoplasma/genética,
Mycoplasma/aislamiento & purificación,
Infecciones por Mycoplasma/diagnóstico,
Infecciones por Mycoplasma/epidemiología,
Infecciones por Mycoplasma/veterinaria,
Filogenia,
Reacción en Cadena de la Polimerasa/veterinaria,
ARN Ribosómico 16S/genética,
Rhipicephalus/microbiología,
Ovinos,
Enfermedades de las Ovejas/diagnóstico,
Enfermedades de las Ovejas/epidemiología,
Enfermedades de las Ovejas/microbiología
Se evaluó la efectividad de Baubassil® (Beauveria bassiana) sobre la garrapata Rhipicephalus (Boophilus) microplus. En la fase in vitro, se determinaron la temperatura óptima de germinación del hongo mediante microcultivos a 25, 30 y 35° C, y la mortalidad de las garrapatas. En campo, en un diseño ...
Abstract This study aimed to perform a morphological, molecular and phylogenetic characterization of Borrelia theileri obtained from infected Rhipicephalus microplus in Brazil. Fifty engorged R. microplus females from cattle in the municipality of Seropédica, Rio de Janeiro, were analyzed for spirochet...
Cruz, Breno Cayeiro;
Gomes, Lucas Vinicius Costa;
Maciel, Willian Giquelin;
Felippelli, Gustavo;
Santos, Isabella Barbosa dos;
Cruvinel, Leonardo Bueno;
Couto, Luiz Fellipe Monteiro;
Bastos, Thiago Souza Azeredo;
Cavalcante, Alliny Souza de Assis;
Nicaretta, João Eduardo;
Soares, Vando Edésio;
Costa, Alvimar José da;
Lopes, Welber Daniel Zanetti.
Abstract This study involved two field trials with the aim of evaluating the efficacy of diflubenzuron, via mineral supplementation, against Haematobia irritans parasitizing cattle. Concomitantly with the main trial, a stall test was conducted to ascertain the effects of a different formulation with the...
