Tick infestation level interferes with spray formulation (organophosphate + pyrethroid) efficacy against Rhipicephalus microplus

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal dos Vales do Jequitinhonha e Mucuri-
Autor(es): dc.contributorUniversidade Federal de Minas Gerais (UFMG)-
Autor(es): dc.contributorUniversidade Brasil-
Autor(es): dc.contributorUniversidade Federal de Goiás (UFG)-
Autor(es): dc.creatorFelippelli, Gustavo-
Autor(es): dc.creatorTeixeira, Weslen Fabricio Pires-
Autor(es): dc.creatorGomes, Lucas Vinicius Costa-
Autor(es): dc.creatorMaciel, Willian Giquelin-
Autor(es): dc.creatorCruz, Breno Cayeiro-
Autor(es): dc.creatorBuzzulini, Carolina-
Autor(es): dc.creatordos Santos, Thais Rabelo-
Autor(es): dc.creatorFerreira, Lorena Lopes-
Autor(es): dc.creatorSoares, Vando Edésio-
Autor(es): dc.creatorRodrigues, Daniel Castro-
Autor(es): dc.creatorMonteiro, Caio Márcio de Oliveira-
Autor(es): dc.creatorda Costa, Alvimar José-
Autor(es): dc.creatorLopes, Welber Daniel Zanetti-
Data de aceite: dc.date.accessioned2025-08-21T22:51:44Z-
Data de disponibilização: dc.date.available2025-08-21T22:51:44Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ttbdis.2022.101903-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223278-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223278-
Descrição: dc.descriptionDue to the scarcity of information regarding the control of Rhipicephalus microplus on bovines with different tick burdens, tick counts and the efficacy of a commercial spray formulation (aspersion bath with organophosphate + pyrethroid) were evaluated for animals with a low and high tick burdens for 35 days in a stall test. Thirty-two crossbreed Bos taurus indicus x Bos t. taurus experimentally infested with R. microplus larvae were divided into four groups: T01 high infestation control, T02 high infestation treated, T03 low infestation control, and T04 low infestation treated. The bovines were kept individually in pens and R. microplus females were collected daily. All data were statistically analyzed with a significance level of 5% (P ≤ 0.05). For linear regressions, variables with P≤0.05 and the highest coefficients of determination (R2 ≥ 0.70) were considered the best descriptors. The reliability level was 95%. Tick counts differed (P<0.0001) between T01 and T02 (high infestation control vs. treated), except at day 2 (P >0.05) post-treatment, and efficacy ranged from 85.2 to 50.6%. The number of collected engorged females was lower (P<0.0001) for T04 than for T03 (low infestation treated vs. control) animals from day 3 to 29, and efficacy ranged from 95.2 to 69.8%. In addition, tick burden and efficacy were negatively correlated for both the group of animals with a high tick burden (r = -0.5256; p = 0.0012; R² = 0.2762) and the group of animals with a low tick burden (r = -0.9817; p < 0.0001; R² = 0.9638). In conclusion, a high tick burden on bovines decreases the efficacy of the tested spray acaricide.-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista-
Descrição: dc.descriptionUniversidade Federal dos Vales do Jequitinhonha e Mucuri-
Descrição: dc.descriptionDepartamento de Medicina Veterinária Preventiva Escola de Veterinária Universidade Federal de Minas Gerais-
Descrição: dc.descriptionUniversidade Brasil-
Descrição: dc.descriptionCentro de Parasitologia Veterinária Escola de Veterinária e Zootecnia Universidade Federal de Goiás-
Descrição: dc.descriptionDepartamento de Biociências e Tecnologia Instituto de Patologia Tropical e Saúde Pública Universidade Federal de Goiás-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista-
Idioma: dc.languageen-
Relação: dc.relationTicks and Tick-borne Diseases-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAspersion bath-
Palavras-chave: dc.subjectCattle tick-
Palavras-chave: dc.subjectChemical control-
Palavras-chave: dc.subjectSpray acaricide-
Palavras-chave: dc.subjectTick burden-
Título: dc.titleTick infestation level interferes with spray formulation (organophosphate + pyrethroid) efficacy against Rhipicephalus microplus-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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