Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus
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 param...
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| Format: | Article |
| Language: | English |
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Colégio Brasileiro de Parasitologia Veterinaria
2014-12-01
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| Series: | Revista Brasileira de Parasitologia Veterinária |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&tlng=en |
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| author | Breno Cayeiro Cruz Welber Daniel Zanetti Lopes Willian Giquelin Maciel Gustavo Felipelli Weslen Fabricio Pires Teixeira Flavia Carolina Favero Luciana Prando Carolina Buzzulini Vando Edesio Sorares Lucas Vinicius Costa Gomes Murilo Abud Bichuette Alvimar José da Costa |
| author_facet | Breno Cayeiro Cruz Welber Daniel Zanetti Lopes Willian Giquelin Maciel Gustavo Felipelli Weslen Fabricio Pires Teixeira Flavia Carolina Favero Luciana Prando Carolina Buzzulini Vando Edesio Sorares Lucas Vinicius Costa Gomes Murilo Abud Bichuette Alvimar José da Costa |
| author_sort | Breno Cayeiro Cruz |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-12T17:56:47Z |
| format | Article |
| id | doaj.art-49de1de52d8c4beaae78341c221ab81f |
| institution | Directory Open Access Journal |
| issn | 1984-2961 |
| language | English |
| last_indexed | 2024-12-12T17:56:47Z |
| publishDate | 2014-12-01 |
| publisher | Colégio Brasileiro de Parasitologia Veterinaria |
| record_format | Article |
| series | Revista Brasileira de Parasitologia Veterinária |
| spelling | doaj.art-49de1de52d8c4beaae78341c221ab81f2022-12-22T00:16:42ZengColégio Brasileiro de Parasitologia VeterinariaRevista Brasileira de Parasitologia Veterinária1984-29612014-12-0123442142710.1590/S1984-29612014095S1984-29612014000400421Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplusBreno Cayeiro CruzWelber Daniel Zanetti LopesWillian Giquelin MacielGustavo FelipelliWeslen Fabricio Pires TeixeiraFlavia Carolina FaveroLuciana PrandoCarolina BuzzuliniVando Edesio SoraresLucas Vinicius Costa GomesMurilo Abud BichuetteAlvimar José da CostaThe 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&tlng=enCarrapato bovinodichlorvos 60% + chlorpyrifos 20%população susceptíveleficiência reprodutivaR. (B.) microplus |
| spellingShingle | Breno Cayeiro Cruz Welber Daniel Zanetti Lopes Willian Giquelin Maciel Gustavo Felipelli Weslen Fabricio Pires Teixeira Flavia Carolina Favero Luciana Prando Carolina Buzzulini Vando Edesio Sorares Lucas Vinicius Costa Gomes Murilo Abud Bichuette Alvimar José da Costa Effect of a spray formulation on the reproductive parameters of a susceptible population of Rhipicephalus (Boophilus) microplus Revista Brasileira de Parasitologia Veterinária Carrapato bovino dichlorvos 60% + chlorpyrifos 20% população susceptível eficiência reprodutiva R. (B.) microplus |
| title | 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_short | 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 |
| topic | Carrapato bovino dichlorvos 60% + chlorpyrifos 20% população susceptível eficiência reprodutiva R. (B.) microplus |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612014000400421&lng=en&tlng=en |
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