Efficacy of collars with allomones on dogs to control Rhipicephalus sanguineus sensu lato infestations under field conditions

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dc.creatorBarreto, Lucas Prado
dc.creatorSilva, Cárita de Souza Ribeiro e
dc.creatorMachado, Lucas Damião Costa
dc.creatorLima, Valesca Henrique
dc.creatorPinto, Salorrane Miranda do Nascimento
dc.creatorPereira Junior, Ronaldo Alves
dc.creatorCarreira, Dhiogo Neres
dc.creatorMascarin, Gabriel Moura
dc.creatorFernandes, Éverton Kort Kamp
dc.creatorBorges, Lígia Miranda Ferreira
dc.date.accessioned2025-01-07T13:35:41Z
dc.date.available2025-01-07T13:35:41Z
dc.date.issued2021
dc.description.abstractBenzaldehyde and 2-hexanone are allomones produced by beagle dogs that reduce infestation by Rhipicephalus sanguineus sensu lato on these animals and on susceptible dogs which artificially release these repellents. These observations were obtained in previous laboratory tests or artificial infestations of susceptible dogs under controlled conditions. Here we evaluated the efficacy of collars delivering these repellents for suppressing the loads of R. sanguineus s.l. on naturally infested mixed-breed dogs under field conditions. Thirty dogs naturally infested with R. sanguineus s.l. were separated into two groups with 15 dogs each. The dogs from the treatment group received the collars with slow-release formulations of the allomones, and the dogs from the control group received collars without such compounds. Collar effectiveness tests were carried out over 30 days. All ticks found were removed from each dog, identified, and counted every collection day. The density of the different life stages of R. sanguineus s.l. varied greatly between groups and across evaluation times. Adult ticks were the stage most abundant and prevalent on infested dogs. The counts for larvae, nymphs and adults were similar between the control and the treatment groups within each tick collection day. Conversely, when we considered the total number of ticks over 30 days and gathered all life stages collected in the same animal, the dogs from the control group had significantly higher loads (35.3 ± 4.27) of ticks than the dogs from the treatment group (21.8 ± 2.96) (P < 0.01). In addition, the efficacy of treatment with repellent collars was high for adult ticks (30.8%) but was extremely low for reducing larval or nymphal infestation (0 or 2.6%, respectively). The present study demonstrates, for the first time, the efficacy of these volatile compounds on naturally infested dogs under field conditions. The development of a technologically enhanced device for slow release of the allomones tested here can be an advantageous alternative for reducing R. sanguineus s.l. infestation on dogs in residential environments.
dc.identifier.citationBARRETO, Lucas P. et al. Efficacy of collars with allomones on dogs to control Rhipicephalus sanguineus sensu lato infestations under field conditions. Ticks and Tick-Borne Diseases, Amsterdam, v. 12, n. 5, e101769, 2021. DOI: 10.1016/j.ttbdis.2021.101769. Disponível em: https://www.sciencedirect.com/science/article/pii/S1877959X21001229?via%3Dihub. Acesso em: 11 dez. 2024.
dc.identifier.doi10.1016/j.ttbdis.2021.101769
dc.identifier.issn1877-959X
dc.identifier.issne- 1877-9603
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1877959X21001229?via%3Dihub
dc.language.isoeng
dc.publisher.countryHolanda
dc.publisher.departmentInstituto de Patologia Tropical e Saúde Pública - IPTSP (RMG)
dc.rightsAcesso Restrito
dc.subjectBenzaldehyde
dc.subject2-hexanone
dc.subjectFormulation
dc.subjectRepellency
dc.subjectTick control
dc.titleEfficacy of collars with allomones on dogs to control Rhipicephalus sanguineus sensu lato infestations under field conditions
dc.typeArtigo

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