A comparison of three different methodologies for evaluating Rhipicephalus (Boophilus) rnicroplus susceptibility to topical spray compounds

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dc.contributor.authorCorrea, Rafael Rodrigues [UNESP]
dc.contributor.authorZanetti Lopes, Welber Daniel [UNESP]
dc.contributor.authorPires Teixeira, Weslen Fabricio [UNESP]
dc.contributor.authorCruz, Breno Cayeiro [UNESP]
dc.contributor.authorCosta Gomes, Lucas Vinicius [UNESP]
dc.contributor.authorFelippelli, Gustavo [UNESP]
dc.contributor.authorMaciel, Willian Giquelin [UNESP]
dc.contributor.authorFavero, Flavia Carolina [UNESP]
dc.contributor.authorBuzzulini, Carolina [UNESP]
dc.contributor.authorBichuette, Murilo Abud [UNESP]
dc.contributor.authorSoares, Vando Edesio [UNESP]
dc.contributor.authorCosta, Alvimar Jose da [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade Camilo Castelo Branco (UNICASTELO)
dc.date.accessioned2015-10-22T06:19:43Z
dc.date.available2015-10-22T06:19:43Z
dc.date.issued2015-01-15
dc.description.abstractThis study aimed to compare three different methodologies (Adult Immersion Tests, field trials with naturally infected animals, and a Stall Test using artificially infested cattle) to evaluate the efficacy of two topical formulations that we administered as whole body sprays (15% Cypermethrin + 30% Chlorpyriphos + 15% Fenthion-Colosso (R) FC 30, Ouro Fino Agronegocios; and 60% Dichlorvos + 20% Chlorpyriphos-Ectofos (R), Vallee Saude Animal Ltd.), against a susceptible strain of Rhipicephalus (Boophilus) microplus. To achieve this objective, two natural infestation trials were conducted, as well as two artificial infestation trials (Stall Tests) and two Adult Immersion Tests (AIT). The AIT results showed that both spray formulations achieved 100% efficacy against R. (B.) micro plus fully engorged females. However, when observing results obtained by field trials (natural infestations) and Stall Tests, none of these topically applied compounds reached 100% efficacy or affected the reproductive capacity of the fully engorged female ticks. Additional studies must be conducted to compare these in vivo methodologies with different in vitro techniques, such as the Larval Packet Test. However, based on results obtained here, we can conclude that depending on the spray formulations used, the AIT can overestimate acaricidal efficacy and values of reproductive efficiency of such compounds against R (B.) micro plus. Specifically, when dealing with spray formulations in the Stall Tests, the period of residual action can increase because these animals are sheltered from contact with environmental factors that might interfere with the efficacy of the products tested. It may be necessary to take in vivo trial results into consideration (such as field trials with naturally infested animals or Stall Tests) to standardize a specific in vitro assay, such as the Adult Immersion Test. (C) 2014 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Estadual Paulista (UNESP) - Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, São Paulo, Brasil|Universidade Federal de Goiás, Regional de Jataí, Goiás, Brasil
dc.description.affiliationUniversidade Camilo Castelo Branco (UNICASTELO), Descalvado, São Paulo, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) - Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, São Paulo, Brasil
dc.format.extent115-124
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0304401714005639
dc.identifier.citationVeterinary Parasitology. Amsterdam: Elsevier Science Bv, v. 207, n. 1-2, p. 115-124, 2015.
dc.identifier.doi10.1016/j.vetpar.2014.11.001
dc.identifier.issn0304-4017
dc.identifier.urihttp://hdl.handle.net/11449/129631
dc.identifier.wosWOS:000348949200015
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofVeterinary Parasitology
dc.relation.ispartofjcr2.422
dc.relation.ispartofsjr1,275
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectAdult immersion testen
dc.subjectArtificial infestationsen
dc.subjectNatural infestationen
dc.subjectSpray formulationsen
dc.subjectStall testen
dc.titleA comparison of three different methodologies for evaluating Rhipicephalus (Boophilus) rnicroplus susceptibility to topical spray compoundsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes4587241487071929[12]
unesp.author.orcid0000-0001-7537-323X[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentPatologia Veterinária - FCAVpt

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Jaboticabal - FCAV - Faculdade de Ciências Agrárias e Veterinárias