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A comparison of two in vitro bioassays to detect resistance of the cattle tick Rhipicephalus microplus to fipronil
Torrents, Jorgelina; Morel, Nicolas; Rossner, Maria Victoria; Martinez, Norberto Claudio; Nava, Santiago (Elsevier, 2023-01)The aim of this work is to compare the sensitivity of two in vitro bioassays to detect resistant to fipronil in Argentinean populations of the cattle tick Rhipicephalus microplus. Two different larval bioassays prepared ... -
Analysis of sequence variations in the GABA gated chloride gene associated with resistance to fipronil in Rhipicephalus (Boophilus) microplus ticks from Argentina
Sarli, Macarena; Torrents, Jorgelina; Morel, Nicolas; Nava, Santiago (Elsevier, 2022-11)This study aimed to evaluate the sequence variations of the GABA-Cl gene of Rhipicephalus (Boophilus) microplus ticks from Argentina with different resistance levels to fipronil. Genomic DNA was obtained from engorged ... -
Comparative analysis of Rhipicephalus microplus (Canestrini, 1888) infestation in pure breed (Hereford) and cross breed (Braford) cattle herds subjected to the same chemical treatments
Morel, Nicolas; Torrents, Jorgelina; Nava, Santiago (Springer Nature, 2024-05)The aim of this work was to analyze the R. microplus (Canestrini, 1888) infestation in two bovine herds with different degrees of natural resistance (i.e., Hereford and Braford) to ticks subjected to an identical chemical ... -
Eficacia reducida de derquantel y abamectina en ovinos y caprinos con Haemonchus sp resistentes a lactonas macrocíclicas
Cerutti, Julieta; Cooper, Laura G.; Torrents, Jorgelina; Suarez Archilla, Guillermo Alejandro; Anziani, Oscar Sergio (2018)Se presentan las observaciones efectuadas sobre la actividad de una combinación antihelmíntica conteniendo un nueva droga, el derquantel (spiroindoles) adicionada con abamectina (lactonas macrocíclicas) en ovinos y caprinos ... -
Evaluation of the impact of successive acaricide treatments on resistance evolution in Rhipicephalus microplus populations: Monodrugs versus drug combinations
Sarli, Macarena; Torrents, Jorgelina; Toffaletti, Jose Rodolfo; Morel, Nicolas; Nava, Santiago (Elsevier, 2023-11)The aim of this work was to comparatively evaluate the evolution of resistance in Rhipicephalus microplus tick populations exposed to successive treatments with monodrug-based formulations and combinations of them in the ... -
Relationship between pharmacokinetics of fluazuron and its efficacy for controlling Rhipicephalus microplus: A comprehensive evaluation of tick drug uptake
Sarli, Macarena; Miró, María Victoria; Rossner, Maria Victoria; Gomez, Viviana Daniela; Torrents, Jorgelina; Nava, Santiago; Lifschitz, Adrián Luis (Elsevier, 2024-11)Relationship between fluazuron (FZN) concentrations in cattle plasma and ticks and its therapeutic efficacy percentage (EP) against Rhipicephalus microplus was analyzed. The extent of FZN uptake by ticks after its topical ... -
Rhipicephalus microplus (Acari: Ixodidae) parasitando Axis axis (Artiodactyla: Cervidae) ciervo exótico, en la provincia de Entre Ríos, Argentina = Rhipicephalus microplus (Acari: Ixodidae) parasitizing Axis axis (Artiodactyla: Cervidae) chital deer, from the Entre Ríos province, Argentina
Pelosi, María Celeste; Torrents, Jorgelina; Avancini, Diego; Puntin, Esteban; Nava, Santiago; Tarragona, Evelina Luisa (Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2024-05)El presente trabajo reporta el hallazgo de especímenes de Rhipicephalus microplus (garrapata común del bovino) parasitando a dos ciervos exóticos Axis axis encontrados atropellados en dos líneas temporales (2021 y 2023) ... -
Spatiotemporal heterogeneity of Rhipicephalus microplus resistance to chemical acaricides at intra-farm level: A case study using ivermectin
Morel, Nicolas; Torrents, Jorgelina; Sarli, Macarena; Rossner, Maria Victoria; Lifschitz, Adrian Luis; Nava, Santiago (Royal Entomological Society, 2024-12)The aim of this work was to analyse the spatiotemporal heterogeneity of Rhipicephalus microplus (Canestrini, 1888) (Acari: Ixodidae) resistance to chemical acaricides at intra-farm level under different environmental ... -
Theileria cervi in Amblyomma neumanni (Acari: Ixodida, Ixodidae) collected on horses from North-western Argentina
Montini, Martina; Torrents, Jorgelina; Nava, Santiago; Sebastian, Patrick (Springer, 2025-01)Amblyomma neumanni ticks collected on horses from the North-West of Argentina were analyzed for the presence of the Piroplasm agents Babesia and Theileria. A total of 97 adult ticks from four different provinces (Jujuy, ...