Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus

Detalhes bibliográficos
Autor(a) principal: Cruz, Breno Cayeiro [UNESP]
Data de Publicação: 2014
Outros Autores: Zanetti Lopes, Welber Daniel [UNESP], Maciel, Willian Giquelin [UNESP], Felipelli, Gustavo [UNESP], Pires Teixeira, Weslen Fabricio [UNESP], Favero, Flavia Carolina [UNESP], Prando, Luciana [UNESP], Buzzulini, Carolina [UNESP], Sorares, Vando Edesio [UNESP], Costa Gomes, Lucas Vinicius [UNESP], Bichuette, Murilo Abud [UNESP], Costa, Alvimar Jose da [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&nrm=iso&tlng=en
http://hdl.handle.net/11449/130170
Resumo: The number of studies emphasizing the possible damage that acaricidal spray formulations can cause on engorged female ticks'reproductive parameters is small. The present study evaluated the deleterious effects of a spray formulation (dichlorvos 60% + chlorpyrifos 20%) on the reproductive parameters of a susceptible population of Rhipicephalus (B.) microplus females, using the Stall Test. The ticks were allocated randomly to treatments according to the mean numbers of females detached from each cow on days -3, -2 and -1 and the cattle pen location. The numbers of engorged female ticks that naturally detached from the cattle were counted daily from day 1 to day 30. For each group, 20 detached engorged female ticks or the available number collected daily were evaluated regarding reproductive parameters. Associations of organophosphates demonstrated elevated acaricidal efficacy, as well as deleterious effects on the reproductive parameters of R. (B.) microplus females. The engorged female weight (days 1 to 7), weight of egg masses (days 5 to 10) and larval hatching percentage (days 5 to 19) were decreased (P <= 0.05). It is possible that a formulation can lead to deleterious effects on R. (B.) microplus females when the tick population analyzed shows elevated sensitivity towards a particular formulation. However, further studies need to be conducted.
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spelling Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplusCattle tickDichlorvos 60% + chlorpyrifos 20%Susceptible populationReproductive efficiencyR. (B.) microplusThe number of studies emphasizing the possible damage that acaricidal spray formulations can cause on engorged female ticks'reproductive parameters is small. The present study evaluated the deleterious effects of a spray formulation (dichlorvos 60% + chlorpyrifos 20%) on the reproductive parameters of a susceptible population of Rhipicephalus (B.) microplus females, using the Stall Test. The ticks were allocated randomly to treatments according to the mean numbers of females detached from each cow on days -3, -2 and -1 and the cattle pen location. The numbers of engorged female ticks that naturally detached from the cattle were counted daily from day 1 to day 30. For each group, 20 detached engorged female ticks or the available number collected daily were evaluated regarding reproductive parameters. Associations of organophosphates demonstrated elevated acaricidal efficacy, as well as deleterious effects on the reproductive parameters of R. (B.) microplus females. The engorged female weight (days 1 to 7), weight of egg masses (days 5 to 10) and larval hatching percentage (days 5 to 19) were decreased (P <= 0.05). It is possible that a formulation can lead to deleterious effects on R. (B.) microplus females when the tick population analyzed shows elevated sensitivity towards a particular formulation. However, further studies need to be conducted.É relativamente pequeno o número de estudos que enfatiza os danos que uma formulação acaricida spray pode desencadear sobre os parâmetros reprodutivos das teleóginas. O presente estudo teve como objetivo avaliar os efeitos deletérios de uma formulação spray comercial (dichlorvos 60% + Clorpirifós 20%), sobre os parâmetros reprodutivos de uma população susceptível de R. (B.) microplus, desprendidas de bovinos experimentalmente infestados, utilizandose o teste de estábulo. Os animais foram alocados aos grupos de tratamentos de acordo com a contagem média de fêmeas desprendidas dos bovinos nos dias -3, -2 e -1. O número de teleóginas desprendidas foi quantificado do dia 1 ao 30. Para cada grupo, diariamente 20 fêmeas, ou a quantidade disponível, foram selecionadas e submetidas à avaliação dos parâmetros reprodutivos. A associação de organofosforados demonstrou elevada eficácia acaricida e também apresentou efeitos deletérios sob os parâmetros reprodutivos de Rhipicephalus (B.) microplus, diminuindo (P≤0,05) o peso das teleóginas (dos dias 1 ao 7), o peso da massa de ovos (dos dias 5 ao 10) e a eclodibilidade das larvas (dos dias 5 ao 19). Talvez uma formulação pode apresentar efeitos deletérios sobre os parâmetros reprodutivos de fêmeas de R. (B.) microplus, quando existe um elevado grau de sensibilidade dessa cepa de carrapato a um determinado composto. De qualquer maneira, futuros estudos devem ser realizados.Univ Estadual Paulista, Ctr Pesquisas Sanidade Anim CPPAR, Fac Ciencias Agr &Vet, UNESP, Jaboticabal, SP, BrazilUniv Fed Goias, BR-75801615 Jatai, Go, BrazilUniv Estadual Paulista, Ctr Pesquisas Sanidade Anim CPPAR, Fac Ciencias Agr &Vet, UNESP, Jaboticabal, SP, BrazilBrazilian Coll Veterinary ParasitologyUniversidade Estadual Paulista (Unesp)Universidade Federal de Goiás (UFG)Cruz, Breno Cayeiro [UNESP]Zanetti Lopes, Welber Daniel [UNESP]Maciel, Willian Giquelin [UNESP]Felipelli, Gustavo [UNESP]Pires Teixeira, Weslen Fabricio [UNESP]Favero, Flavia Carolina [UNESP]Prando, Luciana [UNESP]Buzzulini, Carolina [UNESP]Sorares, Vando Edesio [UNESP]Costa Gomes, Lucas Vinicius [UNESP]Bichuette, Murilo Abud [UNESP]Costa, Alvimar Jose da [UNESP]2015-11-03T15:29:54Z2015-11-03T15:29:54Z2014-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article421-427application/pdfhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&nrm=iso&tlng=enRevista Brasileira De Parasitologia Veterinaria. Sao Paulo: Brazilian Coll Veterinary Parasitology, v. 23, n. 4, p. 421-427, 2014.1984-2961http://hdl.handle.net/11449/13017010.1590/S1984-29612014095S1984-29612014000400421WOS:000346470000002S1984-29612014000400421.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira De Parasitologia Veterinaria1.090info:eu-repo/semantics/openAccess2024-04-12T13:07:01Zoai:repositorio.unesp.br:11449/130170Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:34:12.308621Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
title Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
spellingShingle Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
Cruz, Breno Cayeiro [UNESP]
Cattle tick
Dichlorvos 60% + chlorpyrifos 20%
Susceptible population
Reproductive efficiency
R. (B.) microplus
title_short Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
title_full Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
title_fullStr Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
title_full_unstemmed Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
title_sort Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
author Cruz, Breno Cayeiro [UNESP]
author_facet Cruz, Breno Cayeiro [UNESP]
Zanetti Lopes, Welber Daniel [UNESP]
Maciel, Willian Giquelin [UNESP]
Felipelli, Gustavo [UNESP]
Pires Teixeira, Weslen Fabricio [UNESP]
Favero, Flavia Carolina [UNESP]
Prando, Luciana [UNESP]
Buzzulini, Carolina [UNESP]
Sorares, Vando Edesio [UNESP]
Costa Gomes, Lucas Vinicius [UNESP]
Bichuette, Murilo Abud [UNESP]
Costa, Alvimar Jose da [UNESP]
author_role author
author2 Zanetti Lopes, Welber Daniel [UNESP]
Maciel, Willian Giquelin [UNESP]
Felipelli, Gustavo [UNESP]
Pires Teixeira, Weslen Fabricio [UNESP]
Favero, Flavia Carolina [UNESP]
Prando, Luciana [UNESP]
Buzzulini, Carolina [UNESP]
Sorares, Vando Edesio [UNESP]
Costa Gomes, Lucas Vinicius [UNESP]
Bichuette, Murilo Abud [UNESP]
Costa, Alvimar Jose da [UNESP]
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de Goiás (UFG)
dc.contributor.author.fl_str_mv Cruz, Breno Cayeiro [UNESP]
Zanetti Lopes, Welber Daniel [UNESP]
Maciel, Willian Giquelin [UNESP]
Felipelli, Gustavo [UNESP]
Pires Teixeira, Weslen Fabricio [UNESP]
Favero, Flavia Carolina [UNESP]
Prando, Luciana [UNESP]
Buzzulini, Carolina [UNESP]
Sorares, Vando Edesio [UNESP]
Costa Gomes, Lucas Vinicius [UNESP]
Bichuette, Murilo Abud [UNESP]
Costa, Alvimar Jose da [UNESP]
dc.subject.por.fl_str_mv Cattle tick
Dichlorvos 60% + chlorpyrifos 20%
Susceptible population
Reproductive efficiency
R. (B.) microplus
topic Cattle tick
Dichlorvos 60% + chlorpyrifos 20%
Susceptible population
Reproductive efficiency
R. (B.) microplus
description The number of studies emphasizing the possible damage that acaricidal spray formulations can cause on engorged female ticks'reproductive parameters is small. The present study evaluated the deleterious effects of a spray formulation (dichlorvos 60% + chlorpyrifos 20%) on the reproductive parameters of a susceptible population of Rhipicephalus (B.) microplus females, using the Stall Test. The ticks were allocated randomly to treatments according to the mean numbers of females detached from each cow on days -3, -2 and -1 and the cattle pen location. The numbers of engorged female ticks that naturally detached from the cattle were counted daily from day 1 to day 30. For each group, 20 detached engorged female ticks or the available number collected daily were evaluated regarding reproductive parameters. Associations of organophosphates demonstrated elevated acaricidal efficacy, as well as deleterious effects on the reproductive parameters of R. (B.) microplus females. The engorged female weight (days 1 to 7), weight of egg masses (days 5 to 10) and larval hatching percentage (days 5 to 19) were decreased (P <= 0.05). It is possible that a formulation can lead to deleterious effects on R. (B.) microplus females when the tick population analyzed shows elevated sensitivity towards a particular formulation. However, further studies need to be conducted.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-01
2015-11-03T15:29:54Z
2015-11-03T15:29:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&nrm=iso&tlng=en
Revista Brasileira De Parasitologia Veterinaria. Sao Paulo: Brazilian Coll Veterinary Parasitology, v. 23, n. 4, p. 421-427, 2014.
1984-2961
http://hdl.handle.net/11449/130170
10.1590/S1984-29612014095
S1984-29612014000400421
WOS:000346470000002
S1984-29612014000400421.pdf
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&nrm=iso&tlng=en
http://hdl.handle.net/11449/130170
identifier_str_mv Revista Brasileira De Parasitologia Veterinaria. Sao Paulo: Brazilian Coll Veterinary Parasitology, v. 23, n. 4, p. 421-427, 2014.
1984-2961
10.1590/S1984-29612014095
S1984-29612014000400421
WOS:000346470000002
S1984-29612014000400421.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Brasileira De Parasitologia Veterinaria
1.090
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 421-427
application/pdf
dc.publisher.none.fl_str_mv Brazilian Coll Veterinary Parasitology
publisher.none.fl_str_mv Brazilian Coll Veterinary Parasitology
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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