Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes

ABSTRACT: in Colombia, the control of tick infestation in cattle is almost exclusively performed with chemical acaricides. It is important to determine the degree of resistance of Riphicephalus microplus field populations to ivermectins (IVM) as the first step to design strategies to increase the us...

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Autores:
Argaiz Villar, David
Puerta, Jonathan
López, Anderson
Chaparro Gutiérrez, Jenny Jovana
Tipo de recurso:
Article of investigation
Fecha de publicación:
2016
Institución:
Universidad de Antioquia
Repositorio:
Repositorio UdeA
Idioma:
eng
OAI Identifier:
oai:bibliotecadigital.udea.edu.co:10495/8056
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http://hdl.handle.net/10495/8056
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Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO)
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network_acronym_str UDEA2
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repository_id_str
dc.title.spa.fl_str_mv Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
dc.title.alternative.spa.fl_str_mv Resistencia de tres poblaciones de Rhipicephalus microplus a la ivermectina por el ensayo de inmersión de larvas
title Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
spellingShingle Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
title_short Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
title_full Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
title_fullStr Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
title_full_unstemmed Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
title_sort Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes
dc.creator.fl_str_mv Argaiz Villar, David
Puerta, Jonathan
López, Anderson
Chaparro Gutiérrez, Jenny Jovana
dc.contributor.author.none.fl_str_mv Argaiz Villar, David
Puerta, Jonathan
López, Anderson
Chaparro Gutiérrez, Jenny Jovana
description ABSTRACT: in Colombia, the control of tick infestation in cattle is almost exclusively performed with chemical acaricides. It is important to determine the degree of resistance of Riphicephalus microplus field populations to ivermectins (IVM) as the first step to design strategies to increase the useful life of acaricides and decrease the reliance on chemical controls. Objective: to test the degree of resistance to IVM. Methods: three cattle farms in Antioquia (Colombia) where IVM had previously failed to control infestations of R. microplus ticks were studied. Ticks were collected several months apart in 2013, and the larval immersion test (LIT) was performed on the progeny of the adult females. Concentration-mortality data were subjected to probit analysis. Results: the three populations showed lethal concentrations (LC) 50 and 99 of ≥ 30 ppm and ≥ 400 ppm, respectively. There was no difference observed in the LC at different times of collection for each population studied. Such high values for LC, together with very low regression slopes (≤ 2), indicated a very heterogeneous response to increasing concentrations of IVM, which is common for resistant populations. At two farms, subcutaneous injection with a long-acting formulation of IVM at a dosage of 630 μg/Kg was ineffective at eliminating existing infestations and protecting against reinfestations, confirming farmer suspicions of lost efficacy. Conclusion: epidemiological studies are necessary to assess the current status of resistance to IVM in this region of Colombia, and it is likely that the intensive use of IVM will aggravate this situation in the future.
publishDate 2016
dc.date.issued.none.fl_str_mv 2016
dc.date.accessioned.none.fl_str_mv 2017-08-30T15:55:12Z
dc.date.available.none.fl_str_mv 2017-08-30T15:55:12Z
dc.type.spa.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.citation.spa.fl_str_mv Argaiz Villar D, Puerta J, López A, Chaparro Gutierrez JJ. Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes. Rev. Colomb. Cienc. Pecu. 2016;29(1):51-57. DOI: 10.17533/udea.rccp.v29n1a06
dc.identifier.issn.none.fl_str_mv 0120-0690
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/10495/8056
dc.identifier.doi.none.fl_str_mv 10.17533/udea.rccp.v29n1a06
dc.identifier.eissn.none.fl_str_mv 2256-2958
identifier_str_mv Argaiz Villar D, Puerta J, López A, Chaparro Gutierrez JJ. Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes. Rev. Colomb. Cienc. Pecu. 2016;29(1):51-57. DOI: 10.17533/udea.rccp.v29n1a06
0120-0690
10.17533/udea.rccp.v29n1a06
2256-2958
url http://hdl.handle.net/10495/8056
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.ispartofjournalabbrev.spa.fl_str_mv Rev. Colomb. Cienc. Pecu.
dc.rights.*.fl_str_mv Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO)
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rights_invalid_str_mv Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO)
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dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad de Antioquia, Facultad de Ciencias Agrarias
dc.publisher.group.spa.fl_str_mv Grupo Vericel
dc.publisher.place.spa.fl_str_mv Medellín, Colombia
institution Universidad de Antioquia
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spelling Argaiz Villar, DavidPuerta, JonathanLópez, AndersonChaparro Gutiérrez, Jenny Jovana2017-08-30T15:55:12Z2017-08-30T15:55:12Z2016Argaiz Villar D, Puerta J, López A, Chaparro Gutierrez JJ. Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tes. Rev. Colomb. Cienc. Pecu. 2016;29(1):51-57. DOI: 10.17533/udea.rccp.v29n1a060120-0690http://hdl.handle.net/10495/805610.17533/udea.rccp.v29n1a062256-2958ABSTRACT: in Colombia, the control of tick infestation in cattle is almost exclusively performed with chemical acaricides. It is important to determine the degree of resistance of Riphicephalus microplus field populations to ivermectins (IVM) as the first step to design strategies to increase the useful life of acaricides and decrease the reliance on chemical controls. Objective: to test the degree of resistance to IVM. Methods: three cattle farms in Antioquia (Colombia) where IVM had previously failed to control infestations of R. microplus ticks were studied. Ticks were collected several months apart in 2013, and the larval immersion test (LIT) was performed on the progeny of the adult females. Concentration-mortality data were subjected to probit analysis. Results: the three populations showed lethal concentrations (LC) 50 and 99 of ≥ 30 ppm and ≥ 400 ppm, respectively. There was no difference observed in the LC at different times of collection for each population studied. Such high values for LC, together with very low regression slopes (≤ 2), indicated a very heterogeneous response to increasing concentrations of IVM, which is common for resistant populations. At two farms, subcutaneous injection with a long-acting formulation of IVM at a dosage of 630 μg/Kg was ineffective at eliminating existing infestations and protecting against reinfestations, confirming farmer suspicions of lost efficacy. Conclusion: epidemiological studies are necessary to assess the current status of resistance to IVM in this region of Colombia, and it is likely that the intensive use of IVM will aggravate this situation in the future.RESUMEN: en Colombia, el control de la infestación de garrapatas en el ganado se ha realizado casi exclusivamente con acaricidas químicos y es importante determinar el grado de resistencia de las poblaciones de campo de Riphicephalus microplus a ivermectinas (IVM) como el primer paso para diseñar tácticas que aumenten su vida útil y disminuyan la dependencia de los controles químicos. Objetivo: probar el grado de resistencia a IVM. Métodos: se evaluó la resistencia de R. microplus a IVM en tres fincas ganaderas en Antioquia (Colombia) donde se sospechaba que productos con IVM estaban fracasando para controlar infestaciones por garrapatas. Se recolectaron garrapatas con varios meses de diferencia durante el año 2013 y se empleó la prueba de inmersión de larvas (LIT) con la descendencia de las hembras adultas. Los datos de concentraciónmortalidad fueron sometidos a análisis probit. Resultados: los resultados para las tres poblaciones estudiadas mostraron concentraciones letales (LC) 50 y 99 de ≥ 30 ppm y ≥ 400 ppm, respectivamente. No se observó diferencia en las LC obtenidas en diferentes momentos de recogida para cada población estudiada. Los altos valores de LC, junto con pendientes muy bajas en las rectas de regresión (≤ 2), indicaron una respuesta muy heterogénea a concentraciones crecientes de IVM, propio de poblaciones resistentes. En dos de las granjas, la administración de inyecciones subcutáneas con una formulación de acción prolongada de la IVM a dosis de 630 μg/Kg fue incapaz de eliminar las infestaciones y proteger frente a reinfestaciones, confirmando las sospechas de los ganaderos de pérdida de eficacia. Conclusión: estudios epidemiológicos son necesarios para evaluar el estado actual de la resistencia a IVM en esta región de Colombia, y es probable que el uso intensivo de IVM agrave esta situación en el futuro.COL0078089application/pdfengUniversidad de Antioquia, Facultad de Ciencias AgrariasGrupo VericelMedellín, Colombiainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_2df8fbb1https://purl.org/redcol/resource_type/ARTArtículo de investigaciónhttp://purl.org/coar/version/c_970fb48d4fbd8a85Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO)info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/co/http://purl.org/coar/access_right/c_abf2https://creativecommons.org/licenses/by-nc-sa/4.0/Ivermectin resistance of three Rhipicephalus microplus populations using the larval immersion tesResistencia de tres poblaciones de Rhipicephalus microplus a la ivermectina por el ensayo de inmersión de larvasRev. Colomb. Cienc. Pecu.Revista Colombiana de Ciencias Pecuarias5157291ORIGINALPuerta_J_2016_Ivermectin_resistence_three.pdfPuerta_J_2016_Ivermectin_resistence_three.pdfArtículo de investigaciónapplication/pdf1157974http://bibliotecadigital.udea.edu.co/bitstream/10495/8056/1/Puerta_J_2016_Ivermectin_resistence_three.pdfa4626cb9e64c4293df6983b808534ffdMD51CC-LICENSElicense_urllicense_urltext/plain; charset=utf-849http://bibliotecadigital.udea.edu.co/bitstream/10495/8056/2/license_url4afdbb8c545fd630ea7db775da747b2fMD52license_textlicense_texttext/html; charset=utf-80http://bibliotecadigital.udea.edu.co/bitstream/10495/8056/3/license_textd41d8cd98f00b204e9800998ecf8427eMD53license_rdflicense_rdfapplication/rdf+xml; charset=utf-80http://bibliotecadigital.udea.edu.co/bitstream/10495/8056/4/license_rdfd41d8cd98f00b204e9800998ecf8427eMD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://bibliotecadigital.udea.edu.co/bitstream/10495/8056/5/license.txt8a4605be74aa9ea9d79846c1fba20a33MD5510495/8056oai:bibliotecadigital.udea.edu.co:10495/80562021-05-21 20:28:33.207Repositorio Institucional Universidad de Antioquiaandres.perez@udea.edu.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