Acaricidal effects of fluazuron (2.5 mg/kg) and a combination of fluazuron (1.6 mg/kg) + ivermectin (0.63 mg/kg), administered at different routes, against Rhipicephalus (Boophilus) microplus parasitizing cattle

Experimental Parasitology
Lucas Vinicius Costa GomesAlvimar José da Costa

Abstract

The present study aimed to evaluate the acaricidal efficacy of fluazuron (2.5 mg/kg), administered as a pour-on, in comparison to an injectable formulation containing fluazuron (1.6 mg/kg) + ivermectin (0.63 mg/kg), against Rhipicephalus (Boophilus) microplus in naturally and experimentally infested cattle. Two studies were conducted with different tick strains, one with artificial infestations (Stall Test, using leight animals per group) and one with natural infestations (utilizing ten animals per group). In both studies, the animals were randomized, according to average tick counts performed on days -3, -2 and -1, into four groups: T01, negative control (saline solution); T02, pour-on fluazuron (2.5 mg/kg); T03: subcutaneous fluazuron (1.6 mg/kg) + ivermectin (0.63 mg/kg); and T04 subcutaneous ivermectin (0.63 mg/kg). Based on obtained results, and considering the utilized tick strains, it was possible to conclude that the pour-on fluazuron (2.5 mg/kg) formulation demonstrated high acaricidal efficacy, with protection periods ranging from 49 to 77 days against Rhipicephalus (Boophilus) microplus. On the other hand, for the injectable fluazuron (1.6 mg/kg) + ivermectin (0.63 mg/kg) formulation, it was not possible to observe e...Continue Reading

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Jan 13, 2015·Veterinary Parasitology·Breno Cayeiro CruzGilson Pereira De Oliveira

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Citations

May 2, 2019·Parasite : Journal De La Société Française De Parasitologie·Pablo JunqueraAlicia Macdonald
Apr 3, 2018·Analytical and Bioanalytical Chemistry·Diego Hernando Ângulo FlorezKeyller Bastos Borges
May 12, 2019·Tropical Animal Health and Production·Thomas Hüe, Chloé Fontfreyde
Dec 6, 2018·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Breno Cayeiro CruzWelber Daniel Zanetti Lopes
Mar 1, 2020·Experimental Parasitology·Thiago Souza Azeredo BastosWelber Daniel Zanetti Lopes
May 14, 2021·Ticks and Tick-borne Diseases·João Eduardo NicarettaWelber Daniel Zanetti Lopes

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